/* Symbol table lookup for the GNU debugger, GDB.
- Copyright (C) 1986-2017 Free Software Foundation, Inc.
+ Copyright (C) 1986-2019 Free Software Foundation, Inc.
This file is part of GDB.
#include "p-lang.h"
#include "addrmap.h"
#include "cli/cli-utils.h"
+#include "cli/cli-style.h"
#include "fnmatch.h"
#include "hashtab.h"
+#include "typeprint.h"
#include "gdb_obstack.h"
#include "block.h"
#include <ctype.h>
#include "cp-abi.h"
#include "cp-support.h"
-#include "observer.h"
+#include "observable.h"
#include "solist.h"
#include "macrotab.h"
#include "macroscope.h"
#include "parser-defs.h"
#include "completer.h"
#include "progspace-and-thread.h"
-#include "common/gdb_optional.h"
+#include "gdbsupport/gdb_optional.h"
#include "filename-seen-cache.h"
#include "arch-utils.h"
+#include <algorithm>
+#include "gdbsupport/pathstuff.h"
/* Forward declarations for local functions. */
-static void rbreak_command (char *, int);
+static void rbreak_command (const char *, int);
static int find_line_common (struct linetable *, int, int *, int);
static struct block_symbol
lookup_symbol_aux (const char *name,
+ symbol_name_match_type match_type,
const struct block *block,
const domain_enum domain,
enum language language,
static
struct block_symbol lookup_local_symbol (const char *name,
+ symbol_name_match_type match_type,
const struct block *block,
const domain_enum domain,
enum language language);
static struct block_symbol
- lookup_symbol_in_objfile (struct objfile *objfile, int block_index,
+ lookup_symbol_in_objfile (struct objfile *objfile,
+ enum block_enum block_index,
const char *name, const domain_enum domain);
-/* See symtab.h. */
-const struct block_symbol null_block_symbol = { NULL, NULL };
-
-extern initialize_file_ftype _initialize_symtab;
-
-/* Program space key for finding name and language of "main". */
-
-static const struct program_space_data *main_progspace_key;
-
/* Type of the data stored on the program space. */
struct main_info
{
+ main_info () = default;
+
+ ~main_info ()
+ {
+ xfree (name_of_main);
+ }
+
/* Name of "main". */
- char *name_of_main;
+ char *name_of_main = nullptr;
/* Language of "main". */
- enum language language_of_main;
+ enum language language_of_main = language_unknown;
};
-/* Program space key for finding its symbol cache. */
+/* Program space key for finding name and language of "main". */
-static const struct program_space_data *symbol_cache_key;
+static const program_space_key<main_info> main_progspace_key;
/* The default symbol cache size.
There is no extra cpu cost for large N (except when flushing the cache,
struct symbol_cache
{
- struct block_symbol_cache *global_symbols;
- struct block_symbol_cache *static_symbols;
+ symbol_cache () = default;
+
+ ~symbol_cache ()
+ {
+ xfree (global_symbols);
+ xfree (static_symbols);
+ }
+
+ struct block_symbol_cache *global_symbols = nullptr;
+ struct block_symbol_cache *static_symbols = nullptr;
};
+/* Program space key for finding its symbol cache. */
+
+static const program_space_key<symbol_cache> symbol_cache_key;
+
/* When non-zero, print debugging messages related to symtab creation. */
unsigned int symtab_create_debug = 0;
the original value from here. */
static unsigned int symbol_cache_size = DEFAULT_SYMBOL_CACHE_SIZE;
-/* Non-zero if a file may be known by two different basenames.
+/* True if a file may be known by two different basenames.
This is the uncommon case, and significantly slows down gdb.
Default set to "off" to not slow down the common case. */
-int basenames_may_differ = 0;
+bool basenames_may_differ = false;
/* Allow the user to configure the debugger behavior with respect
to multiple-choice menus when more than one symbol matches during
return SYMTAB_LANGUAGE (symtab);
}
+/* See symtab.h. */
+
+bool
+minimal_symbol::data_p () const
+{
+ return type == mst_data
+ || type == mst_bss
+ || type == mst_abs
+ || type == mst_file_data
+ || type == mst_file_bss;
+}
+
+/* See symtab.h. */
+
+bool
+minimal_symbol::text_p () const
+{
+ return type == mst_text
+ || type == mst_text_gnu_ifunc
+ || type == mst_data_gnu_ifunc
+ || type == mst_slot_got_plt
+ || type == mst_solib_trampoline
+ || type == mst_file_text;
+}
+
/* See whether FILENAME matches SEARCH_NAME using the rule that we
advertise to the user. (The manual's description of linespecs
describes what we advertise). Returns true if they match, false
gdb::function_view<bool (symtab *)> callback)
{
struct compunit_symtab *cust;
- struct symtab *s;
const char* base_name = lbasename (name);
for (cust = first; cust != NULL && cust != after_last; cust = cust->next)
{
- ALL_COMPUNIT_FILETABS (cust, s)
+ for (symtab *s : compunit_filetabs (cust))
{
if (compare_filenames_for_search (s->filename, name))
{
iterate_over_symtabs (const char *name,
gdb::function_view<bool (symtab *)> callback)
{
- struct objfile *objfile;
gdb::unique_xmalloc_ptr<char> real_path;
/* Here we are interested in canonicalizing an absolute path, not
gdb_assert (IS_ABSOLUTE_PATH (real_path.get ()));
}
- ALL_OBJFILES (objfile)
+ for (objfile *objfile : current_program_space->objfiles ())
{
if (iterate_over_some_symtabs (name, real_path.get (),
objfile->compunit_symtabs, NULL,
/* Same search rules as above apply here, but now we look thru the
psymtabs. */
- ALL_OBJFILES (objfile)
+ for (objfile *objfile : current_program_space->objfiles ())
{
if (objfile->sf
&& objfile->sf->qf->map_symtabs_matching_filename (objfile,
struct fn_field *method = &f[signature_id];
const char *field_name = TYPE_FN_FIELDLIST_NAME (type, method_id);
const char *physname = TYPE_FN_FIELD_PHYSNAME (f, signature_id);
- const char *newname = type_name_no_tag (type);
+ const char *newname = TYPE_NAME (type);
/* Does the form of physname indicate that it is the full mangled name
of a constructor (not just the args)? */
struct demangled_name_entry
{
const char *mangled;
+ ENUM_BITFIELD(language) language : LANGUAGE_BITS;
char demangled[1];
};
name. The entry is hashed via just the mangled name. */
static void
-create_demangled_names_hash (struct objfile *objfile)
+create_demangled_names_hash (struct objfile_per_bfd_storage *per_bfd)
{
/* Choose 256 as the starting size of the hash table, somewhat arbitrarily.
The hash table code will round this up to the next prime number.
Choosing a much larger table size wastes memory, and saves only about
1% in symbol reading. */
- objfile->per_bfd->demangled_names_hash = htab_create_alloc
+ per_bfd->demangled_names_hash.reset (htab_create_alloc
(256, hash_demangled_name_entry, eq_demangled_name_entry,
- NULL, xcalloc, xfree);
+ NULL, xcalloc, xfree));
}
/* Try to determine the demangled name for a symbol, based on the
{
char *demangled = NULL;
int i;
- int recognized;
if (gsymbol->language == language_unknown)
gsymbol->language = language_auto;
void
symbol_set_names (struct general_symbol_info *gsymbol,
- const char *linkage_name, int len, int copy_name,
- struct objfile *objfile)
+ const char *linkage_name, int len, bool copy_name,
+ struct objfile_per_bfd_storage *per_bfd)
{
struct demangled_name_entry **slot;
/* A 0-terminated copy of the linkage name. */
const char *linkage_name_copy;
struct demangled_name_entry entry;
- struct objfile_per_bfd_storage *per_bfd = objfile->per_bfd;
if (gsymbol->language == language_ada)
{
}
if (per_bfd->demangled_names_hash == NULL)
- create_demangled_names_hash (objfile);
+ create_demangled_names_hash (per_bfd);
if (linkage_name[len] != '\0')
{
entry.mangled = linkage_name_copy;
slot = ((struct demangled_name_entry **)
- htab_find_slot (per_bfd->demangled_names_hash,
+ htab_find_slot (per_bfd->demangled_names_hash.get (),
&entry, INSERT));
/* If this name is not in the hash table, add it. */
|| (gsymbol->language == language_go
&& (*slot)->demangled[0] == '\0'))
{
- char *demangled_name = symbol_find_demangled_name (gsymbol,
- linkage_name_copy);
- int demangled_len = demangled_name ? strlen (demangled_name) : 0;
+ char *demangled_name_ptr
+ = symbol_find_demangled_name (gsymbol, linkage_name_copy);
+ gdb::unique_xmalloc_ptr<char> demangled_name (demangled_name_ptr);
+ int demangled_len = demangled_name ? strlen (demangled_name.get ()) : 0;
/* Suppose we have demangled_name==NULL, copy_name==0, and
linkage_name_copy==linkage_name. In this case, we already have the
strcpy (mangled_ptr, linkage_name_copy);
(*slot)->mangled = mangled_ptr;
}
+ (*slot)->language = gsymbol->language;
if (demangled_name != NULL)
- {
- strcpy ((*slot)->demangled, demangled_name);
- xfree (demangled_name);
- }
+ strcpy ((*slot)->demangled, demangled_name.get ());
else
(*slot)->demangled[0] = '\0';
}
+ else if (gsymbol->language == language_unknown
+ || gsymbol->language == language_auto)
+ gsymbol->language = (*slot)->language;
gsymbol->name = (*slot)->mangled;
if ((*slot)->demangled[0] != '\0')
return symbol_natural_name (gsymbol);
}
-/* Initialize the structure fields to zero values. */
+/* See symtab.h. */
-void
-init_sal (struct symtab_and_line *sal)
+bool
+symbol_matches_search_name (const struct general_symbol_info *gsymbol,
+ const lookup_name_info &name)
{
- memset (sal, 0, sizeof (*sal));
+ symbol_name_matcher_ftype *name_match
+ = get_symbol_name_matcher (language_def (gsymbol->language), name);
+ return name_match (symbol_search_name (gsymbol), name, NULL);
}
+
\f
/* Return 1 if the two sections are the same, or if they could
{
asection *first = obj_first? obj_first->the_bfd_section : NULL;
asection *second = obj_second? obj_second->the_bfd_section : NULL;
- struct objfile *obj;
/* If they're the same section, then they match. */
if (first == second)
have the same size, address, and name. We can't compare section indexes,
which would be more reliable, because some sections may have been
stripped. */
- if (bfd_get_section_size (first) != bfd_get_section_size (second))
+ if (bfd_section_size (first) != bfd_section_size (second))
return 0;
/* In-memory addresses may start at a different offset, relativize them. */
- if (bfd_get_section_vma (first->owner, first)
- - bfd_get_start_address (first->owner)
- != bfd_get_section_vma (second->owner, second)
- - bfd_get_start_address (second->owner))
+ if (bfd_section_vma (first) - bfd_get_start_address (first->owner)
+ != bfd_section_vma (second) - bfd_get_start_address (second->owner))
return 0;
- if (bfd_get_section_name (first->owner, first) == NULL
- || bfd_get_section_name (second->owner, second) == NULL
- || strcmp (bfd_get_section_name (first->owner, first),
- bfd_get_section_name (second->owner, second)) != 0)
+ if (bfd_section_name (first) == NULL
+ || bfd_section_name (second) == NULL
+ || strcmp (bfd_section_name (first), bfd_section_name (second)) != 0)
return 0;
/* Otherwise check that they are in corresponding objfiles. */
- ALL_OBJFILES (obj)
- if (obj->obfd == first->owner)
- break;
+ struct objfile *obj = NULL;
+ for (objfile *objfile : current_program_space->objfiles ())
+ if (objfile->obfd == first->owner)
+ {
+ obj = objfile;
+ break;
+ }
gdb_assert (obj != NULL);
if (obj->separate_debug_objfile != NULL
void
expand_symtab_containing_pc (CORE_ADDR pc, struct obj_section *section)
{
- struct objfile *objfile;
struct bound_minimal_symbol msymbol;
/* If we know that this is not a text address, return failure. This is
necessary because we loop based on texthigh and textlow, which do
not include the data ranges. */
msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
- if (msymbol.minsym
- && (MSYMBOL_TYPE (msymbol.minsym) == mst_data
- || MSYMBOL_TYPE (msymbol.minsym) == mst_bss
- || MSYMBOL_TYPE (msymbol.minsym) == mst_abs
- || MSYMBOL_TYPE (msymbol.minsym) == mst_file_data
- || MSYMBOL_TYPE (msymbol.minsym) == mst_file_bss))
+ if (msymbol.minsym && msymbol.minsym->data_p ())
return;
- ALL_OBJFILES (objfile)
- {
- struct compunit_symtab *cust = NULL;
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ struct compunit_symtab *cust = NULL;
- if (objfile->sf)
- cust = objfile->sf->qf->find_pc_sect_compunit_symtab (objfile, msymbol,
- pc, section, 0);
- if (cust)
- return;
- }
+ if (objfile->sf)
+ cust = objfile->sf->qf->find_pc_sect_compunit_symtab (objfile, msymbol,
+ pc, section, 0);
+ if (cust)
+ return;
+ }
}
\f
/* Hash function for the symbol cache. */
}
else if (slot_name != NULL && name != NULL)
{
- /* It's important that we use the same comparison that was done the
- first time through. If the slot records a found symbol, then this
- means using strcmp_iw on SYMBOL_SEARCH_NAME. See dictionary.c.
- It also means using symbol_matches_domain for found symbols.
- See block.c.
+ /* It's important that we use the same comparison that was done
+ the first time through. If the slot records a found symbol,
+ then this means using the symbol name comparison function of
+ the symbol's language with SYMBOL_SEARCH_NAME. See
+ dictionary.c. It also means using symbol_matches_domain for
+ found symbols. See block.c.
If the slot records a not-found symbol, then require a precise match.
We could still be lax with whitespace like strcmp_iw though. */
else
{
struct symbol *sym = slot->value.found.symbol;
+ lookup_name_info lookup_name (name, symbol_name_match_type::FULL);
- if (strcmp_iw (slot_name, name) != 0)
+ if (!SYMBOL_MATCHES_SEARCH_NAME (sym, lookup_name))
return 0;
+
if (!symbol_matches_domain (SYMBOL_LANGUAGE (sym),
slot_domain, domain))
return 0;
}
}
-/* Make a symbol cache of size SIZE. */
-
-static struct symbol_cache *
-make_symbol_cache (unsigned int size)
-{
- struct symbol_cache *cache;
-
- cache = XCNEW (struct symbol_cache);
- resize_symbol_cache (cache, symbol_cache_size);
- return cache;
-}
-
-/* Free the space used by CACHE. */
-
-static void
-free_symbol_cache (struct symbol_cache *cache)
-{
- xfree (cache->global_symbols);
- xfree (cache->static_symbols);
- xfree (cache);
-}
-
/* Return the symbol cache of PSPACE.
Create one if it doesn't exist yet. */
static struct symbol_cache *
get_symbol_cache (struct program_space *pspace)
{
- struct symbol_cache *cache
- = (struct symbol_cache *) program_space_data (pspace, symbol_cache_key);
+ struct symbol_cache *cache = symbol_cache_key.get (pspace);
if (cache == NULL)
{
- cache = make_symbol_cache (symbol_cache_size);
- set_program_space_data (pspace, symbol_cache_key, cache);
+ cache = symbol_cache_key.emplace (pspace);
+ resize_symbol_cache (cache, symbol_cache_size);
}
return cache;
}
-/* Delete the symbol cache of PSPACE.
- Called when PSPACE is destroyed. */
-
-static void
-symbol_cache_cleanup (struct program_space *pspace, void *data)
-{
- struct symbol_cache *cache = (struct symbol_cache *) data;
-
- free_symbol_cache (cache);
-}
-
/* Set the size of the symbol cache in all program spaces. */
static void
ALL_PSPACES (pspace)
{
- struct symbol_cache *cache
- = (struct symbol_cache *) program_space_data (pspace, symbol_cache_key);
+ struct symbol_cache *cache = symbol_cache_key.get (pspace);
/* The pspace could have been created but not have a cache yet. */
if (cache != NULL)
/* Called when symbol-cache-size is set. */
static void
-set_symbol_cache_size_handler (char *args, int from_tty,
+set_symbol_cache_size_handler (const char *args, int from_tty,
struct cmd_list_element *c)
{
if (new_symbol_cache_size > MAX_SYMBOL_CACHE_SIZE)
The result is the symbol if found, SYMBOL_LOOKUP_FAILED if a previous lookup
failed (and thus this one will too), or NULL if the symbol is not present
in the cache.
- If the symbol is not present in the cache, then *BSC_PTR and *SLOT_PTR are
- set to the cache and slot of the symbol to save the result of a full lookup
- attempt. */
+ *BSC_PTR and *SLOT_PTR are set to the cache and slot of the symbol, which
+ can be used to save the result of a full lookup attempt. */
static struct block_symbol
symbol_cache_lookup (struct symbol_cache *cache,
- struct objfile *objfile_context, int block,
+ struct objfile *objfile_context, enum block_enum block,
const char *name, domain_enum domain,
struct block_symbol_cache **bsc_ptr,
struct symbol_cache_slot **slot_ptr)
{
*bsc_ptr = NULL;
*slot_ptr = NULL;
- return (struct block_symbol) {NULL, NULL};
+ return {};
}
hash = hash_symbol_entry (objfile_context, name, domain);
slot = bsc->symbols + hash % bsc->size;
+ *bsc_ptr = bsc;
+ *slot_ptr = slot;
+
if (eq_symbol_entry (slot, objfile_context, name, domain))
{
if (symbol_lookup_debug)
/* Symbol is not present in the cache. */
- *bsc_ptr = bsc;
- *slot_ptr = slot;
-
if (symbol_lookup_debug)
{
fprintf_unfiltered (gdb_stdlog,
name, domain_name (domain));
}
++bsc->misses;
- return (struct block_symbol) {NULL, NULL};
+ return {};
}
/* Clear out SLOT. */
static void
symbol_cache_flush (struct program_space *pspace)
{
- struct symbol_cache *cache
- = (struct symbol_cache *) program_space_data (pspace, symbol_cache_key);
+ struct symbol_cache *cache = symbol_cache_key.get (pspace);
int pass;
if (cache == NULL)
/* The "mt print symbol-cache" command. */
static void
-maintenance_print_symbol_cache (char *args, int from_tty)
+maintenance_print_symbol_cache (const char *args, int from_tty)
{
struct program_space *pspace;
: "(no object file)");
/* If the cache hasn't been created yet, avoid creating one. */
- cache
- = (struct symbol_cache *) program_space_data (pspace, symbol_cache_key);
+ cache = symbol_cache_key.get (pspace);
if (cache == NULL)
printf_filtered (" <empty>\n");
else
/* The "mt flush-symbol-cache" command. */
static void
-maintenance_flush_symbol_cache (char *args, int from_tty)
+maintenance_flush_symbol_cache (const char *args, int from_tty)
{
struct program_space *pspace;
/* The "mt print symbol-cache-statistics" command. */
static void
-maintenance_print_symbol_cache_statistics (char *args, int from_tty)
+maintenance_print_symbol_cache_statistics (const char *args, int from_tty)
{
struct program_space *pspace;
: "(no object file)");
/* If the cache hasn't been created yet, avoid creating one. */
- cache
- = (struct symbol_cache *) program_space_data (pspace, symbol_cache_key);
+ cache = symbol_cache_key.get (pspace);
if (cache == NULL)
printf_filtered (" empty, no stats available\n");
else
addr = SYMBOL_VALUE_ADDRESS (sym);
break;
case LOC_BLOCK:
- addr = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
+ addr = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym));
break;
default:
return sym;
}
+/* See symtab.h. */
+
+demangle_for_lookup_info::demangle_for_lookup_info
+ (const lookup_name_info &lookup_name, language lang)
+{
+ demangle_result_storage storage;
+
+ if (lookup_name.ignore_parameters () && lang == language_cplus)
+ {
+ gdb::unique_xmalloc_ptr<char> without_params
+ = cp_remove_params_if_any (lookup_name.name ().c_str (),
+ lookup_name.completion_mode ());
+
+ if (without_params != NULL)
+ {
+ if (lookup_name.match_type () != symbol_name_match_type::SEARCH_NAME)
+ m_demangled_name = demangle_for_lookup (without_params.get (),
+ lang, storage);
+ return;
+ }
+ }
+
+ if (lookup_name.match_type () == symbol_name_match_type::SEARCH_NAME)
+ m_demangled_name = lookup_name.name ();
+ else
+ m_demangled_name = demangle_for_lookup (lookup_name.name ().c_str (),
+ lang, storage);
+}
+
+/* See symtab.h. */
+
+const lookup_name_info &
+lookup_name_info::match_any ()
+{
+ /* Lookup any symbol that "" would complete. I.e., this matches all
+ symbol names. */
+ static const lookup_name_info lookup_name ({}, symbol_name_match_type::FULL,
+ true);
+
+ return lookup_name;
+}
+
/* Compute the demangled form of NAME as used by the various symbol
lookup functions. The result can either be the input NAME
directly, or a pointer to a buffer owned by the STORAGE object.
return name;
}
+/* See symtab.h. */
+
+unsigned int
+search_name_hash (enum language language, const char *search_name)
+{
+ return language_def (language)->la_search_name_hash (search_name);
+}
+
/* See symtab.h.
This function (or rather its subordinates) have a bunch of loops and
demangle_result_storage storage;
const char *modified_name = demangle_for_lookup (name, lang, storage);
- return lookup_symbol_aux (modified_name, block, domain, lang,
+ return lookup_symbol_aux (modified_name,
+ symbol_name_match_type::FULL,
+ block, domain, lang,
is_a_field_of_this);
}
/* See symtab.h. */
+struct block_symbol
+lookup_symbol_search_name (const char *search_name, const struct block *block,
+ domain_enum domain)
+{
+ return lookup_symbol_aux (search_name, symbol_name_match_type::SEARCH_NAME,
+ block, domain, language_asm, NULL);
+}
+
+/* See symtab.h. */
+
struct block_symbol
lookup_language_this (const struct language_defn *lang,
const struct block *block)
{
if (lang->la_name_of_this == NULL || block == NULL)
- return (struct block_symbol) {NULL, NULL};
+ return {};
if (symbol_lookup_debug > 1)
{
{
struct symbol *sym;
- sym = block_lookup_symbol (block, lang->la_name_of_this, VAR_DOMAIN);
+ sym = block_lookup_symbol (block, lang->la_name_of_this,
+ symbol_name_match_type::SEARCH_NAME,
+ VAR_DOMAIN);
if (sym != NULL)
{
if (symbol_lookup_debug > 1)
if (symbol_lookup_debug > 1)
fprintf_unfiltered (gdb_stdlog, " = NULL\n");
- return (struct block_symbol) {NULL, NULL};
+ return {};
}
/* Given TYPE, a structure/union,
(e.g., demangled name) of the symbol that we're looking for. */
static struct block_symbol
-lookup_symbol_aux (const char *name, const struct block *block,
+lookup_symbol_aux (const char *name, symbol_name_match_type match_type,
+ const struct block *block,
const domain_enum domain, enum language language,
struct field_of_this_result *is_a_field_of_this)
{
/* Search specified block and its superiors. Don't search
STATIC_BLOCK or GLOBAL_BLOCK. */
- result = lookup_local_symbol (name, block, domain, language);
+ result = lookup_local_symbol (name, match_type, block, domain, language);
if (result.symbol != NULL)
{
if (symbol_lookup_debug)
fprintf_unfiltered (gdb_stdlog,
"lookup_symbol_aux (...) = NULL\n");
}
- return (struct block_symbol) {NULL, NULL};
+ return {};
}
}
}
Don't search STATIC_BLOCK or GLOBAL_BLOCK. */
static struct block_symbol
-lookup_local_symbol (const char *name, const struct block *block,
+lookup_local_symbol (const char *name,
+ symbol_name_match_type match_type,
+ const struct block *block,
const domain_enum domain,
enum language language)
{
/* Check if either no block is specified or it's a global block. */
if (static_block == NULL)
- return (struct block_symbol) {NULL, NULL};
+ return {};
while (block != static_block)
{
- sym = lookup_symbol_in_block (name, block, domain);
+ sym = lookup_symbol_in_block (name, match_type, block, domain);
if (sym != NULL)
return (struct block_symbol) {sym, block};
if (language == language_cplus || language == language_fortran)
{
- struct block_symbol sym
+ struct block_symbol blocksym
= cp_lookup_symbol_imports_or_template (scope, name, block,
domain);
- if (sym.symbol != NULL)
- return sym;
+ if (blocksym.symbol != NULL)
+ return blocksym;
}
if (BLOCK_FUNCTION (block) != NULL && block_inlined_p (block))
/* We've reached the end of the function without finding a result. */
- return (struct block_symbol) {NULL, NULL};
+ return {};
}
/* See symtab.h. */
struct objfile *
lookup_objfile_from_block (const struct block *block)
{
- struct objfile *obj;
- struct compunit_symtab *cust;
-
if (block == NULL)
return NULL;
block = block_global_block (block);
/* Look through all blockvectors. */
- ALL_COMPUNITS (obj, cust)
- if (block == BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust),
- GLOBAL_BLOCK))
- {
- if (obj->separate_debug_objfile_backlink)
- obj = obj->separate_debug_objfile_backlink;
+ for (objfile *obj : current_program_space->objfiles ())
+ {
+ for (compunit_symtab *cust : obj->compunits ())
+ if (block == BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust),
+ GLOBAL_BLOCK))
+ {
+ if (obj->separate_debug_objfile_backlink)
+ obj = obj->separate_debug_objfile_backlink;
- return obj;
- }
+ return obj;
+ }
+ }
return NULL;
}
/* See symtab.h. */
struct symbol *
-lookup_symbol_in_block (const char *name, const struct block *block,
+lookup_symbol_in_block (const char *name, symbol_name_match_type match_type,
+ const struct block *block,
const domain_enum domain)
{
struct symbol *sym;
domain_name (domain));
}
- sym = block_lookup_symbol (block, name, domain);
+ sym = block_lookup_symbol (block, name, match_type, domain);
if (sym)
{
if (symbol_lookup_debug > 1)
struct block_symbol
lookup_global_symbol_from_objfile (struct objfile *main_objfile,
+ enum block_enum block_index,
const char *name,
const domain_enum domain)
{
- struct objfile *objfile;
+ gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK);
- for (objfile = main_objfile;
- objfile;
- objfile = objfile_separate_debug_iterate (main_objfile, objfile))
+ for (objfile *objfile : main_objfile->separate_debug_objfiles ())
{
struct block_symbol result
- = lookup_symbol_in_objfile (objfile, GLOBAL_BLOCK, name, domain);
+ = lookup_symbol_in_objfile (objfile, block_index, name, domain);
- if (result.symbol != NULL)
+ if (result.symbol != nullptr)
return result;
}
- return (struct block_symbol) {NULL, NULL};
+ return {};
}
/* Check to see if the symbol is defined in one of the OBJFILE's
static symbols. */
static struct block_symbol
-lookup_symbol_in_objfile_symtabs (struct objfile *objfile, int block_index,
- const char *name, const domain_enum domain)
+lookup_symbol_in_objfile_symtabs (struct objfile *objfile,
+ enum block_enum block_index, const char *name,
+ const domain_enum domain)
{
- struct compunit_symtab *cust;
-
gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK);
if (symbol_lookup_debug > 1)
name, domain_name (domain));
}
- ALL_OBJFILE_COMPUNITS (objfile, cust)
+ for (compunit_symtab *cust : objfile->compunits ())
{
const struct blockvector *bv;
const struct block *block;
if (symbol_lookup_debug > 1)
fprintf_unfiltered (gdb_stdlog, " = NULL\n");
- return (struct block_symbol) {NULL, NULL};
+ return {};
}
/* Wrapper around lookup_symbol_in_objfile_symtabs for search_symbols.
Normally we only look in OBJFILE, and not any separate debug objfiles
because the outer loop will cause them to be searched too. This case is
different. Here we're called from search_symbols where it will only
- call us for the the objfile that contains a matching minsym. */
+ call us for the objfile that contains a matching minsym. */
static struct block_symbol
lookup_symbol_in_objfile_from_linkage_name (struct objfile *objfile,
domain_enum domain)
{
enum language lang = current_language->la_language;
- struct objfile *main_objfile, *cur_objfile;
+ struct objfile *main_objfile;
demangle_result_storage storage;
const char *modified_name = demangle_for_lookup (linkage_name, lang, storage);
else
main_objfile = objfile;
- for (cur_objfile = main_objfile;
- cur_objfile;
- cur_objfile = objfile_separate_debug_iterate (main_objfile, cur_objfile))
+ for (::objfile *cur_objfile : main_objfile->separate_debug_objfiles ())
{
struct block_symbol result;
return result;
}
- return (struct block_symbol) {NULL, NULL};
+ return {};
}
/* A helper function that throws an exception when a symbol was found
in a psymtab but not in a symtab. */
static void ATTRIBUTE_NORETURN
-error_in_psymtab_expansion (int block_index, const char *name,
+error_in_psymtab_expansion (enum block_enum block_index, const char *name,
struct compunit_symtab *cust)
{
error (_("\
the "quick" symbol table functions. */
static struct block_symbol
-lookup_symbol_via_quick_fns (struct objfile *objfile, int block_index,
- const char *name, const domain_enum domain)
+lookup_symbol_via_quick_fns (struct objfile *objfile,
+ enum block_enum block_index, const char *name,
+ const domain_enum domain)
{
struct compunit_symtab *cust;
const struct blockvector *bv;
struct block_symbol result;
if (!objfile->sf)
- return (struct block_symbol) {NULL, NULL};
+ return {};
if (symbol_lookup_debug > 1)
{
fprintf_unfiltered (gdb_stdlog,
"lookup_symbol_via_quick_fns (...) = NULL\n");
}
- return (struct block_symbol) {NULL, NULL};
+ return {};
}
bv = COMPUNIT_BLOCKVECTOR (cust);
block = BLOCKVECTOR_BLOCK (bv, block_index);
- result.symbol = block_lookup_symbol (block, name, domain);
+ result.symbol = block_lookup_symbol (block, name,
+ symbol_name_match_type::FULL, domain);
if (result.symbol == NULL)
error_in_psymtab_expansion (block_index, name, cust);
struct symbol *sym;
if (static_block == NULL)
- return (struct block_symbol) {NULL, NULL};
+ return {};
if (symbol_lookup_debug)
{
domain_name (domain));
}
- sym = lookup_symbol_in_block (name, static_block, domain);
+ sym = lookup_symbol_in_block (name,
+ symbol_name_match_type::FULL,
+ static_block, domain);
if (symbol_lookup_debug)
{
fprintf_unfiltered (gdb_stdlog,
BLOCK_INDEX is one of GLOBAL_BLOCK or STATIC_BLOCK. */
static struct block_symbol
-lookup_symbol_in_objfile (struct objfile *objfile, int block_index,
+lookup_symbol_in_objfile (struct objfile *objfile, enum block_enum block_index,
const char *name, const domain_enum domain)
{
struct block_symbol result;
+ gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK);
+
if (symbol_lookup_debug)
{
fprintf_unfiltered (gdb_stdlog,
return result;
}
-/* See symtab.h. */
-
-struct block_symbol
-lookup_static_symbol (const char *name, const domain_enum domain)
-{
- struct symbol_cache *cache = get_symbol_cache (current_program_space);
- struct objfile *objfile;
- struct block_symbol result;
- struct block_symbol_cache *bsc;
- struct symbol_cache_slot *slot;
-
- /* Lookup in STATIC_BLOCK is not current-objfile-dependent, so just pass
- NULL for OBJFILE_CONTEXT. */
- result = symbol_cache_lookup (cache, NULL, STATIC_BLOCK, name, domain,
- &bsc, &slot);
- if (result.symbol != NULL)
- {
- if (SYMBOL_LOOKUP_FAILED_P (result))
- return (struct block_symbol) {NULL, NULL};
- return result;
- }
-
- ALL_OBJFILES (objfile)
- {
- result = lookup_symbol_in_objfile (objfile, STATIC_BLOCK, name, domain);
- if (result.symbol != NULL)
- {
- /* Still pass NULL for OBJFILE_CONTEXT here. */
- symbol_cache_mark_found (bsc, slot, NULL, result.symbol,
- result.block);
- return result;
- }
- }
-
- /* Still pass NULL for OBJFILE_CONTEXT here. */
- symbol_cache_mark_not_found (bsc, slot, NULL, name, domain);
- return (struct block_symbol) {NULL, NULL};
-}
-
/* Private data to be used with lookup_symbol_global_iterator_cb. */
-struct global_sym_lookup_data
+struct global_or_static_sym_lookup_data
{
/* The name of the symbol we are searching for. */
const char *name;
/* The domain to use for our search. */
domain_enum domain;
+ /* The block index in which to search. */
+ enum block_enum block_index;
+
/* The field where the callback should store the symbol if found.
It should be initialized to {NULL, NULL} before the search is started. */
struct block_symbol result;
};
/* A callback function for gdbarch_iterate_over_objfiles_in_search_order.
- It searches by name for a symbol in the GLOBAL_BLOCK of the given
- OBJFILE. The arguments for the search are passed via CB_DATA,
- which in reality is a pointer to struct global_sym_lookup_data. */
+ It searches by name for a symbol in the block given by BLOCK_INDEX of the
+ given OBJFILE. The arguments for the search are passed via CB_DATA, which
+ in reality is a pointer to struct global_or_static_sym_lookup_data. */
static int
-lookup_symbol_global_iterator_cb (struct objfile *objfile,
- void *cb_data)
+lookup_symbol_global_or_static_iterator_cb (struct objfile *objfile,
+ void *cb_data)
{
- struct global_sym_lookup_data *data =
- (struct global_sym_lookup_data *) cb_data;
+ struct global_or_static_sym_lookup_data *data =
+ (struct global_or_static_sym_lookup_data *) cb_data;
gdb_assert (data->result.symbol == NULL
&& data->result.block == NULL);
- data->result = lookup_symbol_in_objfile (objfile, GLOBAL_BLOCK,
+ data->result = lookup_symbol_in_objfile (objfile, data->block_index,
data->name, data->domain);
/* If we found a match, tell the iterator to stop. Otherwise,
return (data->result.symbol != NULL);
}
-/* See symtab.h. */
+/* This function contains the common code of lookup_{global,static}_symbol.
+ OBJFILE is only used if BLOCK_INDEX is GLOBAL_SCOPE, in which case it is
+ the objfile to start the lookup in. */
-struct block_symbol
-lookup_global_symbol (const char *name,
- const struct block *block,
- const domain_enum domain)
+static struct block_symbol
+lookup_global_or_static_symbol (const char *name,
+ enum block_enum block_index,
+ struct objfile *objfile,
+ const domain_enum domain)
{
struct symbol_cache *cache = get_symbol_cache (current_program_space);
struct block_symbol result;
- struct objfile *objfile;
- struct global_sym_lookup_data lookup_data;
+ struct global_or_static_sym_lookup_data lookup_data;
struct block_symbol_cache *bsc;
struct symbol_cache_slot *slot;
- objfile = lookup_objfile_from_block (block);
+ gdb_assert (block_index == GLOBAL_BLOCK || block_index == STATIC_BLOCK);
+ gdb_assert (objfile == nullptr || block_index == GLOBAL_BLOCK);
/* First see if we can find the symbol in the cache.
This works because we use the current objfile to qualify the lookup. */
- result = symbol_cache_lookup (cache, objfile, GLOBAL_BLOCK, name, domain,
+ result = symbol_cache_lookup (cache, objfile, block_index, name, domain,
&bsc, &slot);
if (result.symbol != NULL)
{
if (SYMBOL_LOOKUP_FAILED_P (result))
- return (struct block_symbol) {NULL, NULL};
+ return {};
return result;
}
- /* Call library-specific lookup procedure. */
- if (objfile != NULL)
- result = solib_global_lookup (objfile, name, domain);
-
- /* If that didn't work go a global search (of global blocks, heh). */
+ /* Do a global search (of global blocks, heh). */
if (result.symbol == NULL)
{
memset (&lookup_data, 0, sizeof (lookup_data));
lookup_data.name = name;
+ lookup_data.block_index = block_index;
lookup_data.domain = domain;
gdbarch_iterate_over_objfiles_in_search_order
(objfile != NULL ? get_objfile_arch (objfile) : target_gdbarch (),
- lookup_symbol_global_iterator_cb, &lookup_data, objfile);
+ lookup_symbol_global_or_static_iterator_cb, &lookup_data, objfile);
result = lookup_data.result;
}
return result;
}
+/* See symtab.h. */
+
+struct block_symbol
+lookup_static_symbol (const char *name, const domain_enum domain)
+{
+ return lookup_global_or_static_symbol (name, STATIC_BLOCK, nullptr, domain);
+}
+
+/* See symtab.h. */
+
+struct block_symbol
+lookup_global_symbol (const char *name,
+ const struct block *block,
+ const domain_enum domain)
+{
+ struct objfile *objfile = lookup_objfile_from_block (block);
+ return lookup_global_or_static_symbol (name, GLOBAL_BLOCK, objfile, domain);
+}
+
int
symbol_matches_domain (enum language symbol_language,
domain_enum symbol_domain,
"quick" symbol table functions. */
static struct type *
-basic_lookup_transparent_type_quick (struct objfile *objfile, int block_index,
+basic_lookup_transparent_type_quick (struct objfile *objfile,
+ enum block_enum block_index,
const char *name)
{
struct compunit_symtab *cust;
const struct blockvector *bv;
- struct block *block;
+ const struct block *block;
struct symbol *sym;
if (!objfile->sf)
BLOCK_INDEX is either GLOBAL_BLOCK or STATIC_BLOCK. */
static struct type *
-basic_lookup_transparent_type_1 (struct objfile *objfile, int block_index,
+basic_lookup_transparent_type_1 (struct objfile *objfile,
+ enum block_enum block_index,
const char *name)
{
- const struct compunit_symtab *cust;
const struct blockvector *bv;
const struct block *block;
const struct symbol *sym;
- ALL_OBJFILE_COMPUNITS (objfile, cust)
+ for (compunit_symtab *cust : objfile->compunits ())
{
bv = COMPUNIT_BLOCKVECTOR (cust);
block = BLOCKVECTOR_BLOCK (bv, block_index);
struct type *
basic_lookup_transparent_type (const char *name)
{
- struct objfile *objfile;
struct type *t;
/* Now search all the global symbols. Do the symtab's first, then
of the desired name as a global, then do psymtab-to-symtab
conversion on the fly and return the found symbol. */
- ALL_OBJFILES (objfile)
- {
- t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name);
- if (t)
- return t;
- }
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ t = basic_lookup_transparent_type_1 (objfile, GLOBAL_BLOCK, name);
+ if (t)
+ return t;
+ }
- ALL_OBJFILES (objfile)
- {
- t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name);
- if (t)
- return t;
- }
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ t = basic_lookup_transparent_type_quick (objfile, GLOBAL_BLOCK, name);
+ if (t)
+ return t;
+ }
/* Now search the static file-level symbols.
Not strictly correct, but more useful than an error.
of the desired name as a file-level static, then do psymtab-to-symtab
conversion on the fly and return the found symbol. */
- ALL_OBJFILES (objfile)
- {
- t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name);
- if (t)
- return t;
- }
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ t = basic_lookup_transparent_type_1 (objfile, STATIC_BLOCK, name);
+ if (t)
+ return t;
+ }
- ALL_OBJFILES (objfile)
- {
- t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name);
- if (t)
- return t;
- }
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ t = basic_lookup_transparent_type_quick (objfile, STATIC_BLOCK, name);
+ if (t)
+ return t;
+ }
return (struct type *) 0;
}
-/* Iterate over the symbols named NAME, matching DOMAIN, in BLOCK.
-
- For each symbol that matches, CALLBACK is called. The symbol is
- passed to the callback.
-
- If CALLBACK returns false, the iteration ends. Otherwise, the
- search continues. */
+/* See symtab.h. */
-void
-iterate_over_symbols (const struct block *block, const char *name,
+bool
+iterate_over_symbols (const struct block *block,
+ const lookup_name_info &name,
const domain_enum domain,
gdb::function_view<symbol_found_callback_ftype> callback)
{
if (symbol_matches_domain (SYMBOL_LANGUAGE (sym),
SYMBOL_DOMAIN (sym), domain))
{
- if (!callback (sym))
- return;
+ struct block_symbol block_sym = {sym, block};
+
+ if (!callback (&block_sym))
+ return false;
}
}
+ return true;
+}
+
+/* See symtab.h. */
+
+bool
+iterate_over_symbols_terminated
+ (const struct block *block,
+ const lookup_name_info &name,
+ const domain_enum domain,
+ gdb::function_view<symbol_found_callback_ftype> callback)
+{
+ if (!iterate_over_symbols (block, name, domain, callback))
+ return false;
+ struct block_symbol block_sym = {nullptr, block};
+ return callback (&block_sym);
}
/* Find the compunit symtab associated with PC and SECTION.
struct compunit_symtab *
find_pc_sect_compunit_symtab (CORE_ADDR pc, struct obj_section *section)
{
- struct compunit_symtab *cust;
struct compunit_symtab *best_cust = NULL;
- struct objfile *objfile;
CORE_ADDR distance = 0;
struct bound_minimal_symbol msymbol;
we call find_pc_sect_psymtab which has a similar restriction based
on the partial_symtab's texthigh and textlow. */
msymbol = lookup_minimal_symbol_by_pc_section (pc, section);
- if (msymbol.minsym
- && (MSYMBOL_TYPE (msymbol.minsym) == mst_data
- || MSYMBOL_TYPE (msymbol.minsym) == mst_bss
- || MSYMBOL_TYPE (msymbol.minsym) == mst_abs
- || MSYMBOL_TYPE (msymbol.minsym) == mst_file_data
- || MSYMBOL_TYPE (msymbol.minsym) == mst_file_bss))
+ if (msymbol.minsym && msymbol.minsym->data_p ())
return NULL;
/* Search all symtabs for the one whose file contains our address, and which
It also happens for objfiles that have their functions reordered.
For these, the symtab we are looking for is not necessarily read in. */
- ALL_COMPUNITS (objfile, cust)
- {
- struct block *b;
- const struct blockvector *bv;
-
- bv = COMPUNIT_BLOCKVECTOR (cust);
- b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
+ for (objfile *obj_file : current_program_space->objfiles ())
+ {
+ for (compunit_symtab *cust : obj_file->compunits ())
+ {
+ const struct block *b;
+ const struct blockvector *bv;
- if (BLOCK_START (b) <= pc
- && BLOCK_END (b) > pc
- && (distance == 0
- || BLOCK_END (b) - BLOCK_START (b) < distance))
- {
- /* For an objfile that has its functions reordered,
- find_pc_psymtab will find the proper partial symbol table
- and we simply return its corresponding symtab. */
- /* In order to better support objfiles that contain both
- stabs and coff debugging info, we continue on if a psymtab
- can't be found. */
- if ((objfile->flags & OBJF_REORDERED) && objfile->sf)
- {
- struct compunit_symtab *result;
-
- result
- = objfile->sf->qf->find_pc_sect_compunit_symtab (objfile,
- msymbol,
- pc, section,
- 0);
- if (result != NULL)
- return result;
- }
- if (section != 0)
- {
- struct block_iterator iter;
- struct symbol *sym = NULL;
+ bv = COMPUNIT_BLOCKVECTOR (cust);
+ b = BLOCKVECTOR_BLOCK (bv, GLOBAL_BLOCK);
- ALL_BLOCK_SYMBOLS (b, iter, sym)
- {
- fixup_symbol_section (sym, objfile);
- if (matching_obj_sections (SYMBOL_OBJ_SECTION (objfile, sym),
- section))
- break;
- }
- if (sym == NULL)
- continue; /* No symbol in this symtab matches
- section. */
- }
- distance = BLOCK_END (b) - BLOCK_START (b);
- best_cust = cust;
- }
- }
+ if (BLOCK_START (b) <= pc
+ && BLOCK_END (b) > pc
+ && (distance == 0
+ || BLOCK_END (b) - BLOCK_START (b) < distance))
+ {
+ /* For an objfile that has its functions reordered,
+ find_pc_psymtab will find the proper partial symbol table
+ and we simply return its corresponding symtab. */
+ /* In order to better support objfiles that contain both
+ stabs and coff debugging info, we continue on if a psymtab
+ can't be found. */
+ if ((obj_file->flags & OBJF_REORDERED) && obj_file->sf)
+ {
+ struct compunit_symtab *result;
+
+ result
+ = obj_file->sf->qf->find_pc_sect_compunit_symtab (obj_file,
+ msymbol,
+ pc,
+ section,
+ 0);
+ if (result != NULL)
+ return result;
+ }
+ if (section != 0)
+ {
+ struct block_iterator iter;
+ struct symbol *sym = NULL;
+
+ ALL_BLOCK_SYMBOLS (b, iter, sym)
+ {
+ fixup_symbol_section (sym, obj_file);
+ if (matching_obj_sections (SYMBOL_OBJ_SECTION (obj_file,
+ sym),
+ section))
+ break;
+ }
+ if (sym == NULL)
+ continue; /* No symbol in this symtab matches
+ section. */
+ }
+ distance = BLOCK_END (b) - BLOCK_START (b);
+ best_cust = cust;
+ }
+ }
+ }
if (best_cust != NULL)
return best_cust;
/* Not found in symtabs, search the "quick" symtabs (e.g. psymtabs). */
- ALL_OBJFILES (objfile)
- {
- struct compunit_symtab *result;
-
- if (!objfile->sf)
- continue;
- result = objfile->sf->qf->find_pc_sect_compunit_symtab (objfile,
- msymbol,
- pc, section,
- 1);
- if (result != NULL)
- return result;
- }
+ for (objfile *objf : current_program_space->objfiles ())
+ {
+ struct compunit_symtab *result;
+
+ if (!objf->sf)
+ continue;
+ result = objf->sf->qf->find_pc_sect_compunit_symtab (objf,
+ msymbol,
+ pc, section,
+ 1);
+ if (result != NULL)
+ return result;
+ }
return NULL;
}
{
return find_pc_sect_compunit_symtab (pc, find_pc_mapped_section (pc));
}
-\f
-
-/* Find the source file and line number for a given PC value and SECTION.
- Return a structure containing a symtab pointer, a line number,
- and a pc range for the entire source line.
- The value's .pc field is NOT the specified pc.
- NOTCURRENT nonzero means, if specified pc is on a line boundary,
- use the line that ends there. Otherwise, in that case, the line
- that begins there is used. */
-
-/* The big complication here is that a line may start in one file, and end just
- before the start of another file. This usually occurs when you #include
- code in the middle of a subroutine. To properly find the end of a line's PC
- range, we must search all symtabs associated with this compilation unit, and
- find the one whose first PC is closer than that of the next line in this
- symtab. */
-/* If it's worth the effort, we could be using a binary search. */
+/* See symtab.h. */
-struct symtab_and_line
+struct symbol *
+find_symbol_at_address (CORE_ADDR address)
+{
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ if (objfile->sf == NULL
+ || objfile->sf->qf->find_compunit_symtab_by_address == NULL)
+ continue;
+
+ struct compunit_symtab *symtab
+ = objfile->sf->qf->find_compunit_symtab_by_address (objfile, address);
+ if (symtab != NULL)
+ {
+ const struct blockvector *bv = COMPUNIT_BLOCKVECTOR (symtab);
+
+ for (int i = GLOBAL_BLOCK; i <= STATIC_BLOCK; ++i)
+ {
+ const struct block *b = BLOCKVECTOR_BLOCK (bv, i);
+ struct block_iterator iter;
+ struct symbol *sym;
+
+ ALL_BLOCK_SYMBOLS (b, iter, sym)
+ {
+ if (SYMBOL_CLASS (sym) == LOC_STATIC
+ && SYMBOL_VALUE_ADDRESS (sym) == address)
+ return sym;
+ }
+ }
+ }
+ }
+
+ return NULL;
+}
+
+\f
+
+/* Find the source file and line number for a given PC value and SECTION.
+ Return a structure containing a symtab pointer, a line number,
+ and a pc range for the entire source line.
+ The value's .pc field is NOT the specified pc.
+ NOTCURRENT nonzero means, if specified pc is on a line boundary,
+ use the line that ends there. Otherwise, in that case, the line
+ that begins there is used. */
+
+/* The big complication here is that a line may start in one file, and end just
+ before the start of another file. This usually occurs when you #include
+ code in the middle of a subroutine. To properly find the end of a line's PC
+ range, we must search all symtabs associated with this compilation unit, and
+ find the one whose first PC is closer than that of the next line in this
+ symtab. */
+
+struct symtab_and_line
find_pc_sect_line (CORE_ADDR pc, struct obj_section *section, int notcurrent)
{
struct compunit_symtab *cust;
- struct symtab *iter_s;
struct linetable *l;
int len;
- int i;
struct linetable_entry *item;
- struct symtab_and_line val;
const struct blockvector *bv;
struct bound_minimal_symbol msymbol;
But what we want is the statement containing the instruction.
Fudge the pc to make sure we get that. */
- init_sal (&val); /* initialize to zeroes */
-
- val.pspace = current_program_space;
-
/* It's tempting to assume that, if we can't find debugging info for
any function enclosing PC, that we shouldn't search for line
number info, either. However, GAS can emit line number info for
return find_pc_line (BMSYMBOL_VALUE_ADDRESS (mfunsym), 0);
}
+ symtab_and_line val;
+ val.pspace = current_program_space;
cust = find_pc_sect_compunit_symtab (pc, section);
if (cust == NULL)
They all have the same apriori range, that we found was right;
but they have different line tables. */
- ALL_COMPUNIT_FILETABS (cust, iter_s)
+ for (symtab *iter_s : compunit_filetabs (cust))
{
/* Find the best line in this symtab. */
l = SYMTAB_LINETABLE (iter_s);
if (item->pc > pc && (!alt || item->pc < alt->pc))
alt = item;
- for (i = 0; i < len; i++, item++)
- {
- /* Leave prev pointing to the linetable entry for the last line
- that started at or before PC. */
- if (item->pc > pc)
- break;
+ auto pc_compare = [](const CORE_ADDR & comp_pc,
+ const struct linetable_entry & lhs)->bool
+ {
+ return comp_pc < lhs.pc;
+ };
- prev = item;
- }
+ struct linetable_entry *first = item;
+ struct linetable_entry *last = item + len;
+ item = std::upper_bound (first, last, pc, pc_compare);
+ if (item != first)
+ prev = item - 1; /* Found a matching item. */
/* At this point, prev points at the line whose start addr is <= pc, and
item points at the next line. If we ran off the end of the linetable
}
/* If another line (denoted by ITEM) is in the linetable and its
- PC is after BEST's PC, but before the current BEST_END, then
+ PC is after BEST's PC, but before the current BEST_END, then
use ITEM's PC as the new best_end. */
- if (best && i < len && item->pc > best->pc
- && (best_end == 0 || best_end > item->pc))
+ if (best && item < last && item->pc > best->pc
+ && (best_end == 0 || best_end > item->pc))
best_end = item->pc;
}
If not found, return NULL. */
struct symtab *
-find_line_symtab (struct symtab *symtab, int line,
+find_line_symtab (struct symtab *sym_tab, int line,
int *index, int *exact_match)
{
int exact = 0; /* Initialized here to avoid a compiler warning. */
struct symtab *best_symtab;
/* First try looking it up in the given symtab. */
- best_linetable = SYMTAB_LINETABLE (symtab);
- best_symtab = symtab;
+ best_linetable = SYMTAB_LINETABLE (sym_tab);
+ best_symtab = sym_tab;
best_index = find_line_common (best_linetable, line, &exact, 0);
if (best_index < 0 || !exact)
{
BEST_INDEX and BEST_LINETABLE identify the item for it. */
int best;
- struct objfile *objfile;
- struct compunit_symtab *cu;
- struct symtab *s;
-
if (best_index >= 0)
best = best_linetable->item[best_index].line;
else
best = 0;
- ALL_OBJFILES (objfile)
- {
- if (objfile->sf)
- objfile->sf->qf->expand_symtabs_with_fullname (objfile,
- symtab_to_fullname (symtab));
- }
-
- ALL_FILETABS (objfile, cu, s)
- {
- struct linetable *l;
- int ind;
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ if (objfile->sf)
+ objfile->sf->qf->expand_symtabs_with_fullname
+ (objfile, symtab_to_fullname (sym_tab));
+ }
- if (FILENAME_CMP (symtab->filename, s->filename) != 0)
- continue;
- if (FILENAME_CMP (symtab_to_fullname (symtab),
- symtab_to_fullname (s)) != 0)
- continue;
- l = SYMTAB_LINETABLE (s);
- ind = find_line_common (l, line, &exact, 0);
- if (ind >= 0)
- {
- if (exact)
- {
- best_index = ind;
- best_linetable = l;
- best_symtab = s;
- goto done;
- }
- if (best == 0 || l->item[ind].line < best)
- {
- best = l->item[ind].line;
- best_index = ind;
- best_linetable = l;
- best_symtab = s;
- }
- }
- }
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ for (compunit_symtab *cu : objfile->compunits ())
+ {
+ for (symtab *s : compunit_filetabs (cu))
+ {
+ struct linetable *l;
+ int ind;
+
+ if (FILENAME_CMP (sym_tab->filename, s->filename) != 0)
+ continue;
+ if (FILENAME_CMP (symtab_to_fullname (sym_tab),
+ symtab_to_fullname (s)) != 0)
+ continue;
+ l = SYMTAB_LINETABLE (s);
+ ind = find_line_common (l, line, &exact, 0);
+ if (ind >= 0)
+ {
+ if (exact)
+ {
+ best_index = ind;
+ best_linetable = l;
+ best_symtab = s;
+ goto done;
+ }
+ if (best == 0 || l->item[ind].line < best)
+ {
+ best = l->item[ind].line;
+ best_index = ind;
+ best_linetable = l;
+ best_symtab = s;
+ }
+ }
+ }
+ }
+ }
}
done:
if (best_index < 0)
return sal.symtab != 0;
}
-/* Given a function symbol SYM, find the symtab and line for the start
- of the function.
- If the argument FUNFIRSTLINE is nonzero, we want the first line
- of real code inside the function.
- This function should return SALs matching those from minsym_found,
- otherwise false multiple-locations breakpoints could be placed. */
+/* Helper for find_function_start_sal. Does most of the work, except
+ setting the sal's symbol. */
-struct symtab_and_line
-find_function_start_sal (struct symbol *sym, int funfirstline)
+static symtab_and_line
+find_function_start_sal_1 (CORE_ADDR func_addr, obj_section *section,
+ bool funfirstline)
{
- struct symtab_and_line sal;
- struct obj_section *section;
-
- fixup_symbol_section (sym, NULL);
- section = SYMBOL_OBJ_SECTION (symbol_objfile (sym), sym);
- sal = find_pc_sect_line (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)), section, 0);
+ symtab_and_line sal = find_pc_sect_line (func_addr, section, 0);
if (funfirstline && sal.symtab != NULL
&& (COMPUNIT_LOCATIONS_VALID (SYMTAB_COMPUNIT (sal.symtab))
|| SYMTAB_LANGUAGE (sal.symtab) == language_asm))
{
- struct gdbarch *gdbarch = symbol_arch (sym);
+ struct gdbarch *gdbarch = get_objfile_arch (SYMTAB_OBJFILE (sal.symtab));
- sal.pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
+ sal.pc = func_addr;
if (gdbarch_skip_entrypoint_p (gdbarch))
sal.pc = gdbarch_skip_entrypoint (gdbarch, sal.pc);
return sal;
}
/* We always should have a line for the function start address.
- If we don't, something is odd. Create a plain SAL refering
+ If we don't, something is odd. Create a plain SAL referring
just the PC and hope that skip_prologue_sal (if requested)
can find a line number for after the prologue. */
- if (sal.pc < BLOCK_START (SYMBOL_BLOCK_VALUE (sym)))
+ if (sal.pc < func_addr)
{
- init_sal (&sal);
+ sal = {};
sal.pspace = current_program_space;
- sal.pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
+ sal.pc = func_addr;
sal.section = section;
}
return sal;
}
+/* See symtab.h. */
+
+symtab_and_line
+find_function_start_sal (CORE_ADDR func_addr, obj_section *section,
+ bool funfirstline)
+{
+ symtab_and_line sal
+ = find_function_start_sal_1 (func_addr, section, funfirstline);
+
+ /* find_function_start_sal_1 does a linetable search, so it finds
+ the symtab and linenumber, but not a symbol. Fill in the
+ function symbol too. */
+ sal.symbol = find_pc_sect_containing_function (sal.pc, sal.section);
+
+ return sal;
+}
+
+/* See symtab.h. */
+
+symtab_and_line
+find_function_start_sal (symbol *sym, bool funfirstline)
+{
+ fixup_symbol_section (sym, NULL);
+ symtab_and_line sal
+ = find_function_start_sal_1 (BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)),
+ SYMBOL_OBJ_SECTION (symbol_objfile (sym), sym),
+ funfirstline);
+ sal.symbol = sym;
+ return sal;
+}
+
+
/* Given a function start address FUNC_ADDR and SYMTAB, find the first
address for that function that has an entry in SYMTAB's line info
table. If such an entry cannot be found, return FUNC_ADDR
/* Adjust SAL to the first instruction past the function prologue.
If the PC was explicitly specified, the SAL is not changed.
- If the line number was explicitly specified, at most the SAL's PC
- is updated. If SAL is already past the prologue, then do nothing. */
+ If the line number was explicitly specified then the SAL can still be
+ updated, unless the language for SAL is assembler, in which case the SAL
+ will be left unchanged.
+ If SAL is already past the prologue, then do nothing. */
void
skip_prologue_sal (struct symtab_and_line *sal)
if (sal->explicit_pc)
return;
+ /* In assembly code, if the user asks for a specific line then we should
+ not adjust the SAL. The user already has instruction level
+ visibility in this case, so selecting a line other than one requested
+ is likely to be the wrong choice. */
+ if (sal->symtab != nullptr
+ && sal->explicit_line
+ && SYMTAB_LANGUAGE (sal->symtab) == language_asm)
+ return;
+
scoped_restore_current_pspace_and_thread restore_pspace_thread;
switch_to_program_space_and_thread (sal->pspace);
fixup_symbol_section (sym, NULL);
objfile = symbol_objfile (sym);
- pc = BLOCK_START (SYMBOL_BLOCK_VALUE (sym));
+ pc = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym));
section = SYMBOL_OBJ_SECTION (objfile, sym);
name = SYMBOL_LINKAGE_NAME (sym);
}
/* Check if gdbarch_skip_prologue left us in mid-line, and the next
line is still part of the same function. */
if (skip && start_sal.pc != pc
- && (sym ? (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end
+ && (sym ? (BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)) <= start_sal.end
&& start_sal.end < BLOCK_END (SYMBOL_BLOCK_VALUE (sym)))
: (lookup_minimal_symbol_by_pc_section (start_sal.end, section).minsym
== lookup_minimal_symbol_by_pc_section (pc, section).minsym)))
sal->pc = pc;
sal->section = section;
-
- /* Unless the explicit_line flag was set, update the SAL line
- and symtab to correspond to the modified PC location. */
- if (sal->explicit_line)
- return;
-
sal->symtab = start_sal.symtab;
sal->line = start_sal.line;
sal->end = start_sal.end;
symbol *
find_function_alias_target (bound_minimal_symbol msymbol)
{
- if (!msymbol_is_text (msymbol.minsym))
+ CORE_ADDR func_addr;
+ if (!msymbol_is_function (msymbol.objfile, msymbol.minsym, &func_addr))
return NULL;
- CORE_ADDR addr = BMSYMBOL_VALUE_ADDRESS (msymbol);
- symbol *sym = find_pc_function (addr);
+ symbol *sym = find_pc_function (func_addr);
if (sym != NULL
&& SYMBOL_CLASS (sym) == LOC_BLOCK
- && BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) == addr)
+ && BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym)) == func_addr)
return sym;
return NULL;
}
\f
+/* What part to match in a file name. */
+
+struct filename_partial_match_opts
+{
+ /* Only match the directory name part. */
+ bool dirname = false;
+
+ /* Only match the basename part. */
+ bool basename = false;
+};
+
/* Data structure to maintain printing state for output_source_filename. */
struct output_source_filename_data
{
+ /* Output only filenames matching REGEXP. */
+ std::string regexp;
+ gdb::optional<compiled_regex> c_regexp;
+ /* Possibly only match a part of the filename. */
+ filename_partial_match_opts partial_match;
+
+
/* Cache of what we've seen so far. */
struct filename_seen_cache *filename_seen_cache;
return;
}
- /* No; print it and reset *FIRST. */
+ /* Does it match data->regexp? */
+ if (data->c_regexp.has_value ())
+ {
+ const char *to_match;
+ std::string dirname;
+
+ if (data->partial_match.dirname)
+ {
+ dirname = ldirname (name);
+ to_match = dirname.c_str ();
+ }
+ else if (data->partial_match.basename)
+ to_match = lbasename (name);
+ else
+ to_match = name;
+
+ if (data->c_regexp->exec (to_match, 0, NULL, 0) != 0)
+ return;
+ }
+
+ /* Print it and reset *FIRST. */
if (! data->first)
printf_filtered (", ");
data->first = 0;
wrap_here ("");
- fputs_filtered (name, gdb_stdout);
+ fputs_styled (name, file_name_style.style (), gdb_stdout);
}
/* A callback for map_partial_symbol_filenames. */
(struct output_source_filename_data *) data);
}
+using isrc_flag_option_def
+ = gdb::option::flag_option_def<filename_partial_match_opts>;
+
+static const gdb::option::option_def info_sources_option_defs[] = {
+
+ isrc_flag_option_def {
+ "dirname",
+ [] (filename_partial_match_opts *opts) { return &opts->dirname; },
+ N_("Show only the files having a dirname matching REGEXP."),
+ },
+
+ isrc_flag_option_def {
+ "basename",
+ [] (filename_partial_match_opts *opts) { return &opts->basename; },
+ N_("Show only the files having a basename matching REGEXP."),
+ },
+
+};
+
+/* Create an option_def_group for the "info sources" options, with
+ ISRC_OPTS as context. */
+
+static inline gdb::option::option_def_group
+make_info_sources_options_def_group (filename_partial_match_opts *isrc_opts)
+{
+ return {{info_sources_option_defs}, isrc_opts};
+}
+
+/* Prints the header message for the source files that will be printed
+ with the matching info present in DATA. SYMBOL_MSG is a message
+ that tells what will or has been done with the symbols of the
+ matching source files. */
+
static void
-info_sources_command (char *ignore, int from_tty)
+print_info_sources_header (const char *symbol_msg,
+ const struct output_source_filename_data *data)
+{
+ puts_filtered (symbol_msg);
+ if (!data->regexp.empty ())
+ {
+ if (data->partial_match.dirname)
+ printf_filtered (_("(dirname matching regular expression \"%s\")"),
+ data->regexp.c_str ());
+ else if (data->partial_match.basename)
+ printf_filtered (_("(basename matching regular expression \"%s\")"),
+ data->regexp.c_str ());
+ else
+ printf_filtered (_("(filename matching regular expression \"%s\")"),
+ data->regexp.c_str ());
+ }
+ puts_filtered ("\n");
+}
+
+/* Completer for "info sources". */
+
+static void
+info_sources_command_completer (cmd_list_element *ignore,
+ completion_tracker &tracker,
+ const char *text, const char *word)
+{
+ const auto group = make_info_sources_options_def_group (nullptr);
+ if (gdb::option::complete_options
+ (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group))
+ return;
+}
+
+static void
+info_sources_command (const char *args, int from_tty)
{
- struct compunit_symtab *cu;
- struct symtab *s;
- struct objfile *objfile;
struct output_source_filename_data data;
if (!have_full_symbols () && !have_partial_symbols ())
filename_seen_cache filenames_seen;
- data.filename_seen_cache = &filenames_seen;
+ auto group = make_info_sources_options_def_group (&data.partial_match);
+
+ gdb::option::process_options
+ (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_ERROR, group);
- printf_filtered ("Source files for which symbols have been read in:\n\n");
+ if (args != NULL && *args != '\000')
+ data.regexp = args;
+ data.filename_seen_cache = &filenames_seen;
data.first = 1;
- ALL_FILETABS (objfile, cu, s)
- {
- const char *fullname = symtab_to_fullname (s);
- output_source_filename (fullname, &data);
- }
+ if (data.partial_match.dirname && data.partial_match.basename)
+ error (_("You cannot give both -basename and -dirname to 'info sources'."));
+ if ((data.partial_match.dirname || data.partial_match.basename)
+ && data.regexp.empty ())
+ error (_("Missing REGEXP for 'info sources'."));
+
+ if (data.regexp.empty ())
+ data.c_regexp.reset ();
+ else
+ {
+ int cflags = REG_NOSUB;
+#ifdef HAVE_CASE_INSENSITIVE_FILE_SYSTEM
+ cflags |= REG_ICASE;
+#endif
+ data.c_regexp.emplace (data.regexp.c_str (), cflags,
+ _("Invalid regexp"));
+ }
+
+ print_info_sources_header
+ (_("Source files for which symbols have been read in:\n"), &data);
+
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ for (compunit_symtab *cu : objfile->compunits ())
+ {
+ for (symtab *s : compunit_filetabs (cu))
+ {
+ const char *fullname = symtab_to_fullname (s);
+
+ output_source_filename (fullname, &data);
+ }
+ }
+ }
printf_filtered ("\n\n");
- printf_filtered ("Source files for which symbols "
- "will be read in on demand:\n\n");
+ print_info_sources_header
+ (_("Source files for which symbols will be read in on demand:\n"), &data);
filenames_seen.clear ();
data.first = 1;
return 0;
}
-/* Free any memory associated with a search. */
-
-void
-free_search_symbols (struct symbol_search *symbols)
-{
- struct symbol_search *p;
- struct symbol_search *next;
-
- for (p = symbols; p != NULL; p = next)
- {
- next = p->next;
- xfree (p);
- }
-}
-
-static void
-do_free_search_symbols_cleanup (void *symbolsp)
-{
- struct symbol_search *symbols = *(struct symbol_search **) symbolsp;
-
- free_search_symbols (symbols);
-}
-
-struct cleanup *
-make_cleanup_free_search_symbols (struct symbol_search **symbolsp)
-{
- return make_cleanup (do_free_search_symbols_cleanup, symbolsp);
-}
-
/* Helper function for sort_search_symbols_remove_dups and qsort. Can only
sort symbols, not minimal symbols. */
-static int
-compare_search_syms (const void *sa, const void *sb)
+int
+symbol_search::compare_search_syms (const symbol_search &sym_a,
+ const symbol_search &sym_b)
{
- struct symbol_search *sym_a = *(struct symbol_search **) sa;
- struct symbol_search *sym_b = *(struct symbol_search **) sb;
int c;
- c = FILENAME_CMP (symbol_symtab (sym_a->symbol)->filename,
- symbol_symtab (sym_b->symbol)->filename);
+ c = FILENAME_CMP (symbol_symtab (sym_a.symbol)->filename,
+ symbol_symtab (sym_b.symbol)->filename);
if (c != 0)
return c;
- if (sym_a->block != sym_b->block)
- return sym_a->block - sym_b->block;
+ if (sym_a.block != sym_b.block)
+ return sym_a.block - sym_b.block;
- return strcmp (SYMBOL_PRINT_NAME (sym_a->symbol),
- SYMBOL_PRINT_NAME (sym_b->symbol));
+ return strcmp (SYMBOL_PRINT_NAME (sym_a.symbol),
+ SYMBOL_PRINT_NAME (sym_b.symbol));
}
-/* Sort the NFOUND symbols in list FOUND and remove duplicates.
- The duplicates are freed, and the new list is returned in
- *NEW_HEAD, *NEW_TAIL. */
+/* Returns true if the type_name of symbol_type of SYM matches TREG.
+ If SYM has no symbol_type or symbol_name, returns false. */
-static void
-sort_search_symbols_remove_dups (struct symbol_search *found, int nfound,
- struct symbol_search **new_head,
- struct symbol_search **new_tail)
+bool
+treg_matches_sym_type_name (const compiled_regex &treg,
+ const struct symbol *sym)
{
- struct symbol_search **symbols, *symp;
- int i, j, nunique;
-
- gdb_assert (found != NULL && nfound > 0);
+ struct type *sym_type;
+ std::string printed_sym_type_name;
- /* Build an array out of the list so we can easily sort them. */
- symbols = XNEWVEC (struct symbol_search *, nfound);
-
- symp = found;
- for (i = 0; i < nfound; i++)
+ if (symbol_lookup_debug > 1)
{
- gdb_assert (symp != NULL);
- gdb_assert (symp->block >= 0 && symp->block <= 1);
- symbols[i] = symp;
- symp = symp->next;
+ fprintf_unfiltered (gdb_stdlog,
+ "treg_matches_sym_type_name\n sym %s\n",
+ SYMBOL_NATURAL_NAME (sym));
}
- gdb_assert (symp == NULL);
- qsort (symbols, nfound, sizeof (struct symbol_search *),
- compare_search_syms);
+ sym_type = SYMBOL_TYPE (sym);
+ if (sym_type == NULL)
+ return false;
- /* Collapse out the dups. */
- for (i = 1, j = 1; i < nfound; ++i)
+ {
+ scoped_switch_to_sym_language_if_auto l (sym);
+
+ printed_sym_type_name = type_to_string (sym_type);
+ }
+
+
+ if (symbol_lookup_debug > 1)
{
- if (compare_search_syms (&symbols[j - 1], &symbols[i]) != 0)
- symbols[j++] = symbols[i];
- else
- xfree (symbols[i]);
+ fprintf_unfiltered (gdb_stdlog,
+ " sym_type_name %s\n",
+ printed_sym_type_name.c_str ());
}
- nunique = j;
- symbols[j - 1]->next = NULL;
- /* Rebuild the linked list. */
- for (i = 0; i < nunique - 1; i++)
- symbols[i]->next = symbols[i + 1];
- symbols[nunique - 1]->next = NULL;
- *new_head = symbols[0];
- *new_tail = symbols[nunique - 1];
- xfree (symbols);
+ if (printed_sym_type_name.empty ())
+ return false;
+
+ return treg.exec (printed_sym_type_name.c_str (), 0, NULL, 0) == 0;
+}
+
+
+/* Sort the symbols in RESULT and remove duplicates. */
+
+static void
+sort_search_symbols_remove_dups (std::vector<symbol_search> *result)
+{
+ std::sort (result->begin (), result->end ());
+ result->erase (std::unique (result->begin (), result->end ()),
+ result->end ());
}
/* Search the symbol table for matches to the regular expression REGEXP,
- returning the results in *MATCHES.
+ returning the results.
Only symbols of KIND are searched:
VARIABLES_DOMAIN - search all symbols, excluding functions, type names,
- and constants (enums)
+ and constants (enums).
+ if T_REGEXP is not NULL, only returns var that have
+ a type matching regular expression T_REGEXP.
FUNCTIONS_DOMAIN - search all functions
TYPES_DOMAIN - search all type names
ALL_DOMAIN - an internal error for this function
- free_search_symbols should be called when *MATCHES is no longer needed.
-
Within each file the results are sorted locally; each symtab's global and
static blocks are separately alphabetized.
- Duplicate entries are removed. */
+ Duplicate entries are removed.
-void
+ When EXCLUDE_MINSYMS is false then matching minsyms are also returned,
+ otherwise they are excluded. */
+
+std::vector<symbol_search>
search_symbols (const char *regexp, enum search_domain kind,
+ const char *t_regexp,
int nfiles, const char *files[],
- struct symbol_search **matches)
+ bool exclude_minsyms)
{
- struct compunit_symtab *cust;
const struct blockvector *bv;
- struct block *b;
+ const struct block *b;
int i = 0;
struct block_iterator iter;
struct symbol *sym;
- struct objfile *objfile;
- struct minimal_symbol *msymbol;
int found_misc = 0;
static const enum minimal_symbol_type types[]
- = {mst_data, mst_text, mst_abs};
+ = {mst_data, mst_text, mst_unknown};
static const enum minimal_symbol_type types2[]
- = {mst_bss, mst_file_text, mst_abs};
+ = {mst_bss, mst_file_text, mst_unknown};
static const enum minimal_symbol_type types3[]
- = {mst_file_data, mst_solib_trampoline, mst_abs};
+ = {mst_file_data, mst_solib_trampoline, mst_unknown};
static const enum minimal_symbol_type types4[]
- = {mst_file_bss, mst_text_gnu_ifunc, mst_abs};
+ = {mst_file_bss, mst_text_gnu_ifunc, mst_unknown};
enum minimal_symbol_type ourtype;
enum minimal_symbol_type ourtype2;
enum minimal_symbol_type ourtype3;
enum minimal_symbol_type ourtype4;
- struct symbol_search *found;
- struct symbol_search *tail;
- int nfound;
+ std::vector<symbol_search> result;
gdb::optional<compiled_regex> preg;
-
- /* OLD_CHAIN .. RETVAL_CHAIN is always freed, RETVAL_CHAIN .. current
- CLEANUP_CHAIN is freed only in the case of an error. */
- struct cleanup *old_chain = make_cleanup (null_cleanup, NULL);
- struct cleanup *retval_chain;
+ gdb::optional<compiled_regex> treg;
gdb_assert (kind <= TYPES_DOMAIN);
ourtype3 = types3[kind];
ourtype4 = types4[kind];
- *matches = NULL;
-
if (regexp != NULL)
{
/* Make sure spacing is right for C++ operators.
and <TYPENAME> or <OPERATOR>. */
const char *opend;
const char *opname = operator_chars (regexp, &opend);
- int errcode;
if (*opname)
{
preg.emplace (regexp, cflags, _("Invalid regexp"));
}
+ if (t_regexp != NULL)
+ {
+ int cflags = REG_NOSUB | (case_sensitivity == case_sensitive_off
+ ? REG_ICASE : 0);
+ treg.emplace (t_regexp, cflags, _("Invalid regexp"));
+ }
+
/* Search through the partial symtabs *first* for all symbols
matching the regexp. That way we don't have to reproduce all of
the machinery below. */
return file_matches (filename, files, nfiles,
basenames);
},
+ lookup_name_info::match_any (),
[&] (const char *symname)
{
- return (!preg || preg->exec (symname,
- 0, NULL, 0) == 0);
+ return (!preg.has_value ()
+ || preg->exec (symname,
+ 0, NULL, 0) == 0);
},
NULL,
kind);
if (nfiles == 0 && (kind == VARIABLES_DOMAIN || kind == FUNCTIONS_DOMAIN))
{
- ALL_MSYMBOLS (objfile, msymbol)
- {
- QUIT;
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ for (minimal_symbol *msymbol : objfile->msymbols ())
+ {
+ QUIT;
- if (msymbol->created_by_gdb)
- continue;
+ if (msymbol->created_by_gdb)
+ continue;
- if (MSYMBOL_TYPE (msymbol) == ourtype
- || MSYMBOL_TYPE (msymbol) == ourtype2
- || MSYMBOL_TYPE (msymbol) == ourtype3
- || MSYMBOL_TYPE (msymbol) == ourtype4)
- {
- if (!preg
- || preg->exec (MSYMBOL_NATURAL_NAME (msymbol), 0,
- NULL, 0) == 0)
- {
- /* Note: An important side-effect of these lookup functions
- is to expand the symbol table if msymbol is found, for the
- benefit of the next loop on ALL_COMPUNITS. */
- if (kind == FUNCTIONS_DOMAIN
- ? (find_pc_compunit_symtab
- (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) == NULL)
- : (lookup_symbol_in_objfile_from_linkage_name
- (objfile, MSYMBOL_LINKAGE_NAME (msymbol), VAR_DOMAIN)
- .symbol == NULL))
- found_misc = 1;
- }
- }
- }
+ if (MSYMBOL_TYPE (msymbol) == ourtype
+ || MSYMBOL_TYPE (msymbol) == ourtype2
+ || MSYMBOL_TYPE (msymbol) == ourtype3
+ || MSYMBOL_TYPE (msymbol) == ourtype4)
+ {
+ if (!preg.has_value ()
+ || preg->exec (MSYMBOL_NATURAL_NAME (msymbol), 0,
+ NULL, 0) == 0)
+ {
+ /* Note: An important side-effect of these
+ lookup functions is to expand the symbol
+ table if msymbol is found, for the benefit of
+ the next loop on compunits. */
+ if (kind == FUNCTIONS_DOMAIN
+ ? (find_pc_compunit_symtab
+ (MSYMBOL_VALUE_ADDRESS (objfile, msymbol))
+ == NULL)
+ : (lookup_symbol_in_objfile_from_linkage_name
+ (objfile, MSYMBOL_LINKAGE_NAME (msymbol),
+ VAR_DOMAIN)
+ .symbol == NULL))
+ found_misc = 1;
+ }
+ }
+ }
+ }
}
- found = NULL;
- tail = NULL;
- nfound = 0;
- retval_chain = make_cleanup_free_search_symbols (&found);
-
- ALL_COMPUNITS (objfile, cust)
- {
- bv = COMPUNIT_BLOCKVECTOR (cust);
- for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
- {
- b = BLOCKVECTOR_BLOCK (bv, i);
- ALL_BLOCK_SYMBOLS (b, iter, sym)
- {
- struct symtab *real_symtab = symbol_symtab (sym);
-
- QUIT;
-
- /* Check first sole REAL_SYMTAB->FILENAME. It does not need to be
- a substring of symtab_to_fullname as it may contain "./" etc. */
- if ((file_matches (real_symtab->filename, files, nfiles, 0)
- || ((basenames_may_differ
- || file_matches (lbasename (real_symtab->filename),
- files, nfiles, 1))
- && file_matches (symtab_to_fullname (real_symtab),
- files, nfiles, 0)))
- && ((!preg
- || preg->exec (SYMBOL_NATURAL_NAME (sym), 0,
- NULL, 0) == 0)
- && ((kind == VARIABLES_DOMAIN
- && SYMBOL_CLASS (sym) != LOC_TYPEDEF
- && SYMBOL_CLASS (sym) != LOC_UNRESOLVED
- && SYMBOL_CLASS (sym) != LOC_BLOCK
- /* LOC_CONST can be used for more than just enums,
- e.g., c++ static const members.
- We only want to skip enums here. */
- && !(SYMBOL_CLASS (sym) == LOC_CONST
- && (TYPE_CODE (SYMBOL_TYPE (sym))
- == TYPE_CODE_ENUM)))
- || (kind == FUNCTIONS_DOMAIN
- && SYMBOL_CLASS (sym) == LOC_BLOCK)
- || (kind == TYPES_DOMAIN
- && SYMBOL_CLASS (sym) == LOC_TYPEDEF))))
- {
- /* match */
- struct symbol_search *psr = XCNEW (struct symbol_search);
-
- psr->block = i;
- psr->symbol = sym;
- psr->next = NULL;
- if (tail == NULL)
- found = psr;
- else
- tail->next = psr;
- tail = psr;
- nfound ++;
- }
- }
- }
- }
-
- if (found != NULL)
+ for (objfile *objfile : current_program_space->objfiles ())
{
- sort_search_symbols_remove_dups (found, nfound, &found, &tail);
- /* Note: nfound is no longer useful beyond this point. */
+ for (compunit_symtab *cust : objfile->compunits ())
+ {
+ bv = COMPUNIT_BLOCKVECTOR (cust);
+ for (i = GLOBAL_BLOCK; i <= STATIC_BLOCK; i++)
+ {
+ b = BLOCKVECTOR_BLOCK (bv, i);
+ ALL_BLOCK_SYMBOLS (b, iter, sym)
+ {
+ struct symtab *real_symtab = symbol_symtab (sym);
+
+ QUIT;
+
+ /* Check first sole REAL_SYMTAB->FILENAME. It does
+ not need to be a substring of symtab_to_fullname as
+ it may contain "./" etc. */
+ if ((file_matches (real_symtab->filename, files, nfiles, 0)
+ || ((basenames_may_differ
+ || file_matches (lbasename (real_symtab->filename),
+ files, nfiles, 1))
+ && file_matches (symtab_to_fullname (real_symtab),
+ files, nfiles, 0)))
+ && ((!preg.has_value ()
+ || preg->exec (SYMBOL_NATURAL_NAME (sym), 0,
+ NULL, 0) == 0)
+ && ((kind == VARIABLES_DOMAIN
+ && SYMBOL_CLASS (sym) != LOC_TYPEDEF
+ && SYMBOL_CLASS (sym) != LOC_UNRESOLVED
+ && SYMBOL_CLASS (sym) != LOC_BLOCK
+ /* LOC_CONST can be used for more than
+ just enums, e.g., c++ static const
+ members. We only want to skip enums
+ here. */
+ && !(SYMBOL_CLASS (sym) == LOC_CONST
+ && (TYPE_CODE (SYMBOL_TYPE (sym))
+ == TYPE_CODE_ENUM))
+ && (!treg.has_value ()
+ || treg_matches_sym_type_name (*treg, sym)))
+ || (kind == FUNCTIONS_DOMAIN
+ && SYMBOL_CLASS (sym) == LOC_BLOCK
+ && (!treg.has_value ()
+ || treg_matches_sym_type_name (*treg,
+ sym)))
+ || (kind == TYPES_DOMAIN
+ && SYMBOL_CLASS (sym) == LOC_TYPEDEF
+ && SYMBOL_DOMAIN (sym) != MODULE_DOMAIN))))
+ {
+ /* match */
+ result.emplace_back (i, sym);
+ }
+ }
+ }
+ }
}
+ if (!result.empty ())
+ sort_search_symbols_remove_dups (&result);
+
/* If there are no eyes, avoid all contact. I mean, if there are
- no debug symbols, then add matching minsyms. */
+ no debug symbols, then add matching minsyms. But if the user wants
+ to see symbols matching a type regexp, then never give a minimal symbol,
+ as we assume that a minimal symbol does not have a type. */
- if (found_misc || (nfiles == 0 && kind != FUNCTIONS_DOMAIN))
+ if ((found_misc || (nfiles == 0 && kind != FUNCTIONS_DOMAIN))
+ && !exclude_minsyms
+ && !treg.has_value ())
{
- ALL_MSYMBOLS (objfile, msymbol)
- {
- QUIT;
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ for (minimal_symbol *msymbol : objfile->msymbols ())
+ {
+ QUIT;
- if (msymbol->created_by_gdb)
- continue;
+ if (msymbol->created_by_gdb)
+ continue;
- if (MSYMBOL_TYPE (msymbol) == ourtype
- || MSYMBOL_TYPE (msymbol) == ourtype2
- || MSYMBOL_TYPE (msymbol) == ourtype3
- || MSYMBOL_TYPE (msymbol) == ourtype4)
- {
- if (!preg || preg->exec (MSYMBOL_NATURAL_NAME (msymbol), 0,
+ if (MSYMBOL_TYPE (msymbol) == ourtype
+ || MSYMBOL_TYPE (msymbol) == ourtype2
+ || MSYMBOL_TYPE (msymbol) == ourtype3
+ || MSYMBOL_TYPE (msymbol) == ourtype4)
+ {
+ if (!preg.has_value ()
+ || preg->exec (MSYMBOL_NATURAL_NAME (msymbol), 0,
NULL, 0) == 0)
- {
- /* For functions we can do a quick check of whether the
- symbol might be found via find_pc_symtab. */
- if (kind != FUNCTIONS_DOMAIN
- || (find_pc_compunit_symtab
- (MSYMBOL_VALUE_ADDRESS (objfile, msymbol)) == NULL))
- {
- if (lookup_symbol_in_objfile_from_linkage_name
- (objfile, MSYMBOL_LINKAGE_NAME (msymbol), VAR_DOMAIN)
- .symbol == NULL)
- {
- /* match */
- struct symbol_search *psr = XNEW (struct symbol_search);
- psr->block = i;
- psr->msymbol.minsym = msymbol;
- psr->msymbol.objfile = objfile;
- psr->symbol = NULL;
- psr->next = NULL;
- if (tail == NULL)
- found = psr;
- else
- tail->next = psr;
- tail = psr;
- }
- }
- }
- }
- }
+ {
+ /* For functions we can do a quick check of whether the
+ symbol might be found via find_pc_symtab. */
+ if (kind != FUNCTIONS_DOMAIN
+ || (find_pc_compunit_symtab
+ (MSYMBOL_VALUE_ADDRESS (objfile, msymbol))
+ == NULL))
+ {
+ if (lookup_symbol_in_objfile_from_linkage_name
+ (objfile, MSYMBOL_LINKAGE_NAME (msymbol),
+ VAR_DOMAIN)
+ .symbol == NULL)
+ {
+ /* match */
+ result.emplace_back (i, msymbol, objfile);
+ }
+ }
+ }
+ }
+ }
+ }
}
- discard_cleanups (retval_chain);
- do_cleanups (old_chain);
- *matches = found;
+ return result;
}
/* Helper function for symtab_symbol_info, this function uses
the data returned from search_symbols() to print information
- regarding the match to gdb_stdout. */
+ regarding the match to gdb_stdout. If LAST is not NULL,
+ print file and line number information for the symbol as
+ well. Skip printing the filename if it matches LAST. */
static void
print_symbol_info (enum search_domain kind,
struct symbol *sym,
int block, const char *last)
{
+ scoped_switch_to_sym_language_if_auto l (sym);
struct symtab *s = symbol_symtab (sym);
- const char *s_filename = symtab_to_filename_for_display (s);
- if (last == NULL || filename_cmp (last, s_filename) != 0)
+ if (last != NULL)
{
- fputs_filtered ("\nFile ", gdb_stdout);
- fputs_filtered (s_filename, gdb_stdout);
- fputs_filtered (":\n", gdb_stdout);
+ const char *s_filename = symtab_to_filename_for_display (s);
+
+ if (filename_cmp (last, s_filename) != 0)
+ {
+ fputs_filtered ("\nFile ", gdb_stdout);
+ fputs_styled (s_filename, file_name_style.style (), gdb_stdout);
+ fputs_filtered (":\n", gdb_stdout);
+ }
+
+ if (SYMBOL_LINE (sym) != 0)
+ printf_filtered ("%d:\t", SYMBOL_LINE (sym));
+ else
+ puts_filtered ("\t");
}
if (kind != TYPES_DOMAIN && block == STATIC_BLOCK)
/* Typedef that is not a C++ class. */
if (kind == TYPES_DOMAIN
&& SYMBOL_DOMAIN (sym) != STRUCT_DOMAIN)
- typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout);
+ {
+ /* FIXME: For C (and C++) we end up with a difference in output here
+ between how a typedef is printed, and non-typedefs are printed.
+ The TYPEDEF_PRINT code places a ";" at the end in an attempt to
+ appear C-like, while TYPE_PRINT doesn't.
+
+ For the struct printing case below, things are worse, we force
+ printing of the ";" in this function, which is going to be wrong
+ for languages that don't require a ";" between statements. */
+ if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_TYPEDEF)
+ typedef_print (SYMBOL_TYPE (sym), sym, gdb_stdout);
+ else
+ {
+ type_print (SYMBOL_TYPE (sym), "", gdb_stdout, -1);
+ printf_filtered ("\n");
+ }
+ }
/* variable, func, or typedef-that-is-c++-class. */
else if (kind < TYPES_DOMAIN
|| (kind == TYPES_DOMAIN
else
tmp = hex_string_custom (BMSYMBOL_VALUE_ADDRESS (msymbol),
16);
- printf_filtered ("%s %s\n",
- tmp, MSYMBOL_PRINT_NAME (msymbol.minsym));
+ fputs_styled (tmp, address_style.style (), gdb_stdout);
+ fputs_filtered (" ", gdb_stdout);
+ if (msymbol.minsym->text_p ())
+ fputs_styled (MSYMBOL_PRINT_NAME (msymbol.minsym),
+ function_name_style.style (),
+ gdb_stdout);
+ else
+ fputs_filtered (MSYMBOL_PRINT_NAME (msymbol.minsym), gdb_stdout);
+ fputs_filtered ("\n", gdb_stdout);
}
/* This is the guts of the commands "info functions", "info types", and
matches. */
static void
-symtab_symbol_info (char *regexp, enum search_domain kind, int from_tty)
+symtab_symbol_info (bool quiet, bool exclude_minsyms,
+ const char *regexp, enum search_domain kind,
+ const char *t_regexp, int from_tty)
{
static const char * const classnames[] =
{"variable", "function", "type"};
- struct symbol_search *symbols;
- struct symbol_search *p;
- struct cleanup *old_chain;
- const char *last_filename = NULL;
+ const char *last_filename = "";
int first = 1;
gdb_assert (kind <= TYPES_DOMAIN);
+ if (regexp != nullptr && *regexp == '\0')
+ regexp = nullptr;
+
/* Must make sure that if we're interrupted, symbols gets freed. */
- search_symbols (regexp, kind, 0, NULL, &symbols);
- old_chain = make_cleanup_free_search_symbols (&symbols);
+ std::vector<symbol_search> symbols = search_symbols (regexp, kind,
+ t_regexp, 0, NULL,
+ exclude_minsyms);
- if (regexp != NULL)
- printf_filtered (_("All %ss matching regular expression \"%s\":\n"),
- classnames[kind], regexp);
- else
- printf_filtered (_("All defined %ss:\n"), classnames[kind]);
+ if (!quiet)
+ {
+ if (regexp != NULL)
+ {
+ if (t_regexp != NULL)
+ printf_filtered
+ (_("All %ss matching regular expression \"%s\""
+ " with type matching regular expression \"%s\":\n"),
+ classnames[kind], regexp, t_regexp);
+ else
+ printf_filtered (_("All %ss matching regular expression \"%s\":\n"),
+ classnames[kind], regexp);
+ }
+ else
+ {
+ if (t_regexp != NULL)
+ printf_filtered
+ (_("All defined %ss"
+ " with type matching regular expression \"%s\" :\n"),
+ classnames[kind], t_regexp);
+ else
+ printf_filtered (_("All defined %ss:\n"), classnames[kind]);
+ }
+ }
- for (p = symbols; p != NULL; p = p->next)
+ for (const symbol_search &p : symbols)
{
QUIT;
- if (p->msymbol.minsym != NULL)
+ if (p.msymbol.minsym != NULL)
{
if (first)
{
- printf_filtered (_("\nNon-debugging symbols:\n"));
+ if (!quiet)
+ printf_filtered (_("\nNon-debugging symbols:\n"));
first = 0;
}
- print_msymbol_info (p->msymbol);
+ print_msymbol_info (p.msymbol);
}
else
{
print_symbol_info (kind,
- p->symbol,
- p->block,
+ p.symbol,
+ p.block,
last_filename);
last_filename
- = symtab_to_filename_for_display (symbol_symtab (p->symbol));
+ = symtab_to_filename_for_display (symbol_symtab (p.symbol));
}
}
+}
- do_cleanups (old_chain);
+/* Structure to hold the values of the options used by the 'info variables'
+ and 'info functions' commands. These correspond to the -q, -t, and -n
+ options. */
+
+struct info_print_options
+{
+ bool quiet = false;
+ bool exclude_minsyms = false;
+ char *type_regexp = nullptr;
+
+ ~info_print_options ()
+ {
+ xfree (type_regexp);
+ }
+};
+
+/* The options used by the 'info variables' and 'info functions'
+ commands. */
+
+static const gdb::option::option_def info_print_options_defs[] = {
+ gdb::option::boolean_option_def<info_print_options> {
+ "q",
+ [] (info_print_options *opt) { return &opt->quiet; },
+ nullptr, /* show_cmd_cb */
+ nullptr /* set_doc */
+ },
+
+ gdb::option::boolean_option_def<info_print_options> {
+ "n",
+ [] (info_print_options *opt) { return &opt->exclude_minsyms; },
+ nullptr, /* show_cmd_cb */
+ nullptr /* set_doc */
+ },
+
+ gdb::option::string_option_def<info_print_options> {
+ "t",
+ [] (info_print_options *opt) { return &opt->type_regexp; },
+ nullptr, /* show_cmd_cb */
+ nullptr /* set_doc */
+ }
+};
+
+/* Returns the option group used by 'info variables' and 'info
+ functions'. */
+
+static gdb::option::option_def_group
+make_info_print_options_def_group (info_print_options *opts)
+{
+ return {{info_print_options_defs}, opts};
}
+/* Command completer for 'info variables' and 'info functions'. */
+
static void
-info_variables_command (char *regexp, int from_tty)
-{
- symtab_symbol_info (regexp, VARIABLES_DOMAIN, from_tty);
+info_print_command_completer (struct cmd_list_element *ignore,
+ completion_tracker &tracker,
+ const char *text, const char * /* word */)
+{
+ const auto group
+ = make_info_print_options_def_group (nullptr);
+ if (gdb::option::complete_options
+ (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group))
+ return;
+
+ const char *word = advance_to_expression_complete_word_point (tracker, text);
+ symbol_completer (ignore, tracker, text, word);
}
+/* Implement the 'info variables' command. */
+
static void
-info_functions_command (char *regexp, int from_tty)
+info_variables_command (const char *args, int from_tty)
{
- symtab_symbol_info (regexp, FUNCTIONS_DOMAIN, from_tty);
+ info_print_options opts;
+ auto grp = make_info_print_options_def_group (&opts);
+ gdb::option::process_options
+ (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp);
+ if (args != nullptr && *args == '\0')
+ args = nullptr;
+
+ symtab_symbol_info (opts.quiet, opts.exclude_minsyms, args, VARIABLES_DOMAIN,
+ opts.type_regexp, from_tty);
}
+/* Implement the 'info functions' command. */
static void
-info_types_command (char *regexp, int from_tty)
+info_functions_command (const char *args, int from_tty)
{
- symtab_symbol_info (regexp, TYPES_DOMAIN, from_tty);
+ info_print_options opts;
+ auto grp = make_info_print_options_def_group (&opts);
+ gdb::option::process_options
+ (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp);
+ if (args != nullptr && *args == '\0')
+ args = nullptr;
+
+ symtab_symbol_info (opts.quiet, opts.exclude_minsyms, args,
+ FUNCTIONS_DOMAIN, opts.type_regexp, from_tty);
}
-/* Breakpoint all functions matching regular expression. */
+/* Holds the -q option for the 'info types' command. */
-void
-rbreak_command_wrapper (char *regexp, int from_tty)
+struct info_types_options
{
- rbreak_command (regexp, from_tty);
+ bool quiet = false;
+};
+
+/* The options used by the 'info types' command. */
+
+static const gdb::option::option_def info_types_options_defs[] = {
+ gdb::option::boolean_option_def<info_types_options> {
+ "q",
+ [] (info_types_options *opt) { return &opt->quiet; },
+ nullptr, /* show_cmd_cb */
+ nullptr /* set_doc */
+ }
+};
+
+/* Returns the option group used by 'info types'. */
+
+static gdb::option::option_def_group
+make_info_types_options_def_group (info_types_options *opts)
+{
+ return {{info_types_options_defs}, opts};
}
-/* A cleanup function that calls end_rbreak_breakpoints. */
+/* Implement the 'info types' command. */
static void
-do_end_rbreak_breakpoints (void *ignore)
+info_types_command (const char *args, int from_tty)
{
- end_rbreak_breakpoints ();
+ info_types_options opts;
+
+ auto grp = make_info_types_options_def_group (&opts);
+ gdb::option::process_options
+ (&args, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, grp);
+ if (args != nullptr && *args == '\0')
+ args = nullptr;
+ symtab_symbol_info (opts.quiet, false, args, TYPES_DOMAIN, NULL, from_tty);
}
+/* Command completer for 'info types' command. */
+
static void
-rbreak_command (char *regexp, int from_tty)
+info_types_command_completer (struct cmd_list_element *ignore,
+ completion_tracker &tracker,
+ const char *text, const char * /* word */)
+{
+ const auto group
+ = make_info_types_options_def_group (nullptr);
+ if (gdb::option::complete_options
+ (tracker, &text, gdb::option::PROCESS_OPTIONS_UNKNOWN_IS_OPERAND, group))
+ return;
+
+ const char *word = advance_to_expression_complete_word_point (tracker, text);
+ symbol_completer (ignore, tracker, text, word);
+}
+
+/* Breakpoint all functions matching regular expression. */
+
+void
+rbreak_command_wrapper (char *regexp, int from_tty)
{
- struct symbol_search *ss;
- struct symbol_search *p;
- struct cleanup *old_chain;
- char *string = NULL;
- int len = 0;
+ rbreak_command (regexp, from_tty);
+}
+
+static void
+rbreak_command (const char *regexp, int from_tty)
+{
+ std::string string;
const char **files = NULL;
const char *file_name;
int nfiles = 0;
if (regexp)
{
- char *colon = strchr (regexp, ':');
+ const char *colon = strchr (regexp, ':');
if (colon && *(colon + 1) != ':')
{
}
}
- search_symbols (regexp, FUNCTIONS_DOMAIN, nfiles, files, &ss);
- old_chain = make_cleanup_free_search_symbols (&ss);
- make_cleanup (free_current_contents, &string);
+ std::vector<symbol_search> symbols = search_symbols (regexp,
+ FUNCTIONS_DOMAIN,
+ NULL,
+ nfiles, files,
+ false);
- start_rbreak_breakpoints ();
- make_cleanup (do_end_rbreak_breakpoints, NULL);
- for (p = ss; p != NULL; p = p->next)
+ scoped_rbreak_breakpoints finalize;
+ for (const symbol_search &p : symbols)
{
- if (p->msymbol.minsym == NULL)
+ if (p.msymbol.minsym == NULL)
{
- struct symtab *symtab = symbol_symtab (p->symbol);
+ struct symtab *symtab = symbol_symtab (p.symbol);
const char *fullname = symtab_to_fullname (symtab);
- int newlen = (strlen (fullname)
- + strlen (SYMBOL_LINKAGE_NAME (p->symbol))
- + 4);
-
- if (newlen > len)
- {
- string = (char *) xrealloc (string, newlen);
- len = newlen;
- }
- strcpy (string, fullname);
- strcat (string, ":'");
- strcat (string, SYMBOL_LINKAGE_NAME (p->symbol));
- strcat (string, "'");
- break_command (string, from_tty);
- print_symbol_info (FUNCTIONS_DOMAIN,
- p->symbol,
- p->block,
- symtab_to_filename_for_display (symtab));
+ string = string_printf ("%s:'%s'", fullname,
+ SYMBOL_LINKAGE_NAME (p.symbol));
+ break_command (&string[0], from_tty);
+ print_symbol_info (FUNCTIONS_DOMAIN, p.symbol, p.block, NULL);
}
else
{
- int newlen = (strlen (MSYMBOL_LINKAGE_NAME (p->msymbol.minsym)) + 3);
-
- if (newlen > len)
- {
- string = (char *) xrealloc (string, newlen);
- len = newlen;
- }
- strcpy (string, "'");
- strcat (string, MSYMBOL_LINKAGE_NAME (p->msymbol.minsym));
- strcat (string, "'");
+ string = string_printf ("'%s'",
+ MSYMBOL_LINKAGE_NAME (p.msymbol.minsym));
- break_command (string, from_tty);
+ break_command (&string[0], from_tty);
printf_filtered ("<function, no debug info> %s;\n",
- MSYMBOL_PRINT_NAME (p->msymbol.minsym));
+ MSYMBOL_PRINT_NAME (p.msymbol.minsym));
}
}
-
- do_cleanups (old_chain);
}
\f
-/* Evaluate if NAME matches SYM_TEXT and SYM_TEXT_LEN.
-
- Either sym_text[sym_text_len] != '(' and then we search for any
- symbol starting with SYM_TEXT text.
-
- Otherwise sym_text[sym_text_len] == '(' and then we require symbol name to
- be terminated at that point. Partial symbol tables do not have parameters
- information. */
+/* Evaluate if SYMNAME matches LOOKUP_NAME. */
static int
-compare_symbol_name (const char *name, const char *sym_text, int sym_text_len)
+compare_symbol_name (const char *symbol_name, language symbol_language,
+ const lookup_name_info &lookup_name,
+ completion_match_result &match_res)
{
- int (*ncmp) (const char *, const char *, size_t);
-
- ncmp = (case_sensitivity == case_sensitive_on ? strncmp : strncasecmp);
-
- if (ncmp (name, sym_text, sym_text_len) != 0)
- return 0;
+ const language_defn *lang = language_def (symbol_language);
- if (sym_text[sym_text_len] == '(')
- {
- /* User searches for `name(someth...'. Require NAME to be terminated.
- Normally psymtabs and gdbindex have no parameter types so '\0' will be
- present but accept even parameters presence. In this case this
- function is in fact strcmp_iw but whitespace skipping is not supported
- for tab completion. */
+ symbol_name_matcher_ftype *name_match
+ = get_symbol_name_matcher (lang, lookup_name);
- if (name[sym_text_len] != '\0' && name[sym_text_len] != '(')
- return 0;
- }
-
- return 1;
+ return name_match (symbol_name, lookup_name, &match_res);
}
-/* Test to see if the symbol specified by SYMNAME (which is already
- demangled for C++ symbols) matches SYM_TEXT in the first SYM_TEXT_LEN
- characters. If so, add it to the current completion list. */
+/* See symtab.h. */
-static void
+void
completion_list_add_name (completion_tracker &tracker,
+ language symbol_language,
const char *symname,
- const char *sym_text, int sym_text_len,
+ const lookup_name_info &lookup_name,
const char *text, const char *word)
{
+ completion_match_result &match_res
+ = tracker.reset_completion_match_result ();
+
/* Clip symbols that cannot match. */
- if (!compare_symbol_name (symname, sym_text, sym_text_len))
+ if (!compare_symbol_name (symname, symbol_language, lookup_name, match_res))
return;
+ /* Refresh SYMNAME from the match string. It's potentially
+ different depending on language. (E.g., on Ada, the match may be
+ the encoded symbol name wrapped in "<>"). */
+ symname = match_res.match.match ();
+ gdb_assert (symname != NULL);
+
/* We have a match for a completion, so add SYMNAME to the current list
of matches. Note that the name is moved to freshly malloc'd space. */
{
- char *newobj;
-
- if (word == sym_text)
- {
- newobj = (char *) xmalloc (strlen (symname) + 5);
- strcpy (newobj, symname);
- }
- else if (word > sym_text)
- {
- /* Return some portion of symname. */
- newobj = (char *) xmalloc (strlen (symname) + 5);
- strcpy (newobj, symname + (word - sym_text));
- }
- else
- {
- /* Return some of SYM_TEXT plus symname. */
- newobj = (char *) xmalloc (strlen (symname) + (sym_text - word) + 5);
- strncpy (newobj, word, sym_text - word);
- newobj[sym_text - word] = '\0';
- strcat (newobj, symname);
- }
-
- gdb::unique_xmalloc_ptr<char> completion (newobj);
-
- tracker.add_completion (std::move (completion));
+ gdb::unique_xmalloc_ptr<char> completion
+ = make_completion_match_str (symname, text, word);
+
+ /* Here we pass the match-for-lcd object to add_completion. Some
+ languages match the user text against substrings of symbol
+ names in some cases. E.g., in C++, "b push_ba" completes to
+ "std::vector::push_back", "std::string::push_back", etc., and
+ in this case we want the completion lowest common denominator
+ to be "push_back" instead of "std::". */
+ tracker.add_completion (std::move (completion),
+ &match_res.match_for_lcd, text, word);
}
}
static void
completion_list_add_symbol (completion_tracker &tracker,
symbol *sym,
- const char *sym_text, int sym_text_len,
+ const lookup_name_info &lookup_name,
const char *text, const char *word)
{
- completion_list_add_name (tracker, SYMBOL_NATURAL_NAME (sym),
- sym_text, sym_text_len, text, word);
+ completion_list_add_name (tracker, SYMBOL_LANGUAGE (sym),
+ SYMBOL_NATURAL_NAME (sym),
+ lookup_name, text, word);
}
/* completion_list_add_name wrapper for struct minimal_symbol. */
static void
completion_list_add_msymbol (completion_tracker &tracker,
minimal_symbol *sym,
- const char *sym_text, int sym_text_len,
+ const lookup_name_info &lookup_name,
const char *text, const char *word)
{
- completion_list_add_name (tracker, MSYMBOL_NATURAL_NAME (sym),
- sym_text, sym_text_len, text, word);
+ completion_list_add_name (tracker, MSYMBOL_LANGUAGE (sym),
+ MSYMBOL_NATURAL_NAME (sym),
+ lookup_name, text, word);
}
+
/* ObjC: In case we are completing on a selector, look as the msymbol
again and feed all the selectors into the mill. */
static void
completion_list_objc_symbol (completion_tracker &tracker,
struct minimal_symbol *msymbol,
- const char *sym_text, int sym_text_len,
+ const lookup_name_info &lookup_name,
const char *text, const char *word)
{
static char *tmp = NULL;
if ((method[0] != '-') && (method[0] != '+'))
return;
- if (sym_text[0] == '[')
+ if (text[0] == '[')
/* Complete on shortened method method. */
- completion_list_add_name (tracker, method + 1,
- sym_text, sym_text_len, text, word);
+ completion_list_add_name (tracker, language_objc,
+ method + 1,
+ lookup_name,
+ text, word);
while ((strlen (method) + 1) >= tmplen)
{
memcpy (tmp, method, (category - method));
tmp[category - method] = ' ';
memcpy (tmp + (category - method) + 1, selector, strlen (selector) + 1);
- completion_list_add_name (tracker, tmp,
- sym_text, sym_text_len, text, word);
- if (sym_text[0] == '[')
- completion_list_add_name (tracker, tmp + 1,
- sym_text, sym_text_len, text, word);
+ completion_list_add_name (tracker, language_objc, tmp,
+ lookup_name, text, word);
+ if (text[0] == '[')
+ completion_list_add_name (tracker, language_objc, tmp + 1,
+ lookup_name, text, word);
}
if (selector != NULL)
if (tmp2 != NULL)
*tmp2 = '\0';
- completion_list_add_name (tracker, tmp,
- sym_text, sym_text_len, text, word);
+ completion_list_add_name (tracker, language_objc, tmp,
+ lookup_name, text, word);
}
}
static void
completion_list_add_fields (completion_tracker &tracker,
struct symbol *sym,
- const char *sym_text, int sym_text_len,
+ const lookup_name_info &lookup_name,
const char *text, const char *word)
{
if (SYMBOL_CLASS (sym) == LOC_TYPEDEF)
if (c == TYPE_CODE_UNION || c == TYPE_CODE_STRUCT)
for (j = TYPE_N_BASECLASSES (t); j < TYPE_NFIELDS (t); j++)
if (TYPE_FIELD_NAME (t, j))
- completion_list_add_name (tracker, TYPE_FIELD_NAME (t, j),
- sym_text, sym_text_len, text, word);
+ completion_list_add_name (tracker, SYMBOL_LANGUAGE (sym),
+ TYPE_FIELD_NAME (t, j),
+ lookup_name, text, word);
+ }
+}
+
+/* See symtab.h. */
+
+bool
+symbol_is_function_or_method (symbol *sym)
+{
+ switch (TYPE_CODE (SYMBOL_TYPE (sym)))
+ {
+ case TYPE_CODE_FUNC:
+ case TYPE_CODE_METHOD:
+ return true;
+ default:
+ return false;
+ }
+}
+
+/* See symtab.h. */
+
+bool
+symbol_is_function_or_method (minimal_symbol *msymbol)
+{
+ switch (MSYMBOL_TYPE (msymbol))
+ {
+ case mst_text:
+ case mst_text_gnu_ifunc:
+ case mst_solib_trampoline:
+ case mst_file_text:
+ return true;
+ default:
+ return false;
}
}
+/* See symtab.h. */
+
+bound_minimal_symbol
+find_gnu_ifunc (const symbol *sym)
+{
+ if (SYMBOL_CLASS (sym) != LOC_BLOCK)
+ return {};
+
+ lookup_name_info lookup_name (SYMBOL_SEARCH_NAME (sym),
+ symbol_name_match_type::SEARCH_NAME);
+ struct objfile *objfile = symbol_objfile (sym);
+
+ CORE_ADDR address = BLOCK_ENTRY_PC (SYMBOL_BLOCK_VALUE (sym));
+ minimal_symbol *ifunc = NULL;
+
+ iterate_over_minimal_symbols (objfile, lookup_name,
+ [&] (minimal_symbol *minsym)
+ {
+ if (MSYMBOL_TYPE (minsym) == mst_text_gnu_ifunc
+ || MSYMBOL_TYPE (minsym) == mst_data_gnu_ifunc)
+ {
+ CORE_ADDR msym_addr = MSYMBOL_VALUE_ADDRESS (objfile, minsym);
+ if (MSYMBOL_TYPE (minsym) == mst_data_gnu_ifunc)
+ {
+ struct gdbarch *gdbarch = get_objfile_arch (objfile);
+ msym_addr
+ = gdbarch_convert_from_func_ptr_addr (gdbarch,
+ msym_addr,
+ current_top_target ());
+ }
+ if (msym_addr == address)
+ {
+ ifunc = minsym;
+ return true;
+ }
+ }
+ return false;
+ });
+
+ if (ifunc != NULL)
+ return {ifunc, objfile};
+ return {};
+}
+
/* Add matching symbols from SYMTAB to the current completion list. */
static void
add_symtab_completions (struct compunit_symtab *cust,
completion_tracker &tracker,
- const char *sym_text, int sym_text_len,
+ complete_symbol_mode mode,
+ const lookup_name_info &lookup_name,
const char *text, const char *word,
enum type_code code)
{
b = BLOCKVECTOR_BLOCK (COMPUNIT_BLOCKVECTOR (cust), i);
ALL_BLOCK_SYMBOLS (b, iter, sym)
{
+ if (completion_skip_symbol (mode, sym))
+ continue;
+
if (code == TYPE_CODE_UNDEF
|| (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN
&& TYPE_CODE (SYMBOL_TYPE (sym)) == code))
completion_list_add_symbol (tracker, sym,
- sym_text, sym_text_len,
+ lookup_name,
text, word);
}
}
void
default_collect_symbol_completion_matches_break_on
- (completion_tracker &tracker,
- complete_symbol_mode mode,
+ (completion_tracker &tracker, complete_symbol_mode mode,
+ symbol_name_match_type name_match_type,
const char *text, const char *word,
const char *break_on, enum type_code code)
{
won't be that many. */
struct symbol *sym;
- struct compunit_symtab *cust;
- struct minimal_symbol *msymbol;
- struct objfile *objfile;
const struct block *b;
const struct block *surrounding_static_block, *surrounding_global_block;
struct block_iterator iter;
/* The symbol we are completing on. Points in same buffer as text. */
const char *sym_text;
- /* Length of sym_text. */
- int sym_text_len;
/* Now look for the symbol we are supposed to complete on. */
if (mode == complete_symbol_mode::LINESPEC)
}
}
- sym_text_len = strlen (sym_text);
-
- /* Prepare SYM_TEXT_LEN for compare_symbol_name. */
-
- if (current_language->la_language == language_cplus
- || current_language->la_language == language_fortran)
- {
- /* These languages may have parameters entered by user but they are never
- present in the partial symbol tables. */
-
- const char *cs = (const char *) memchr (sym_text, '(', sym_text_len);
-
- if (cs)
- sym_text_len = cs - sym_text;
- }
- gdb_assert (sym_text[sym_text_len] == '\0' || sym_text[sym_text_len] == '(');
+ lookup_name_info lookup_name (sym_text, name_match_type, true);
/* At this point scan through the misc symbol vectors and add each
symbol you find to the list. Eventually we want to ignore
if (code == TYPE_CODE_UNDEF)
{
- ALL_MSYMBOLS (objfile, msymbol)
+ for (objfile *objfile : current_program_space->objfiles ())
{
- QUIT;
+ for (minimal_symbol *msymbol : objfile->msymbols ())
+ {
+ QUIT;
+
+ if (completion_skip_symbol (mode, msymbol))
+ continue;
- completion_list_add_msymbol (tracker,
- msymbol, sym_text, sym_text_len,
- text, word);
+ completion_list_add_msymbol (tracker, msymbol, lookup_name,
+ sym_text, word);
- completion_list_objc_symbol (tracker,
- msymbol, sym_text, sym_text_len,
- text, word);
+ completion_list_objc_symbol (tracker, msymbol, lookup_name,
+ sym_text, word);
+ }
}
}
/* Add completions for all currently loaded symbol tables. */
- ALL_COMPUNITS (objfile, cust)
- add_symtab_completions (cust, tracker,
- sym_text, sym_text_len, text, word, code);
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ for (compunit_symtab *cust : objfile->compunits ())
+ add_symtab_completions (cust, tracker, mode, lookup_name,
+ sym_text, word, code);
+ }
/* Look through the partial symtabs for all symbols which begin by
matching SYM_TEXT. Expand all CUs that you find to the list. */
expand_symtabs_matching (NULL,
- [&] (const char *name) /* symbol matcher */
- {
- return compare_symbol_name (name,
- sym_text,
- sym_text_len);
- },
+ lookup_name,
+ NULL,
[&] (compunit_symtab *symtab) /* expansion notify */
{
add_symtab_completions (symtab,
- tracker,
- sym_text, sym_text_len,
- text, word, code);
+ tracker, mode, lookup_name,
+ sym_text, word, code);
},
ALL_DOMAIN);
{
if (code == TYPE_CODE_UNDEF)
{
- completion_list_add_symbol (tracker, sym,
- sym_text, sym_text_len, text,
- word);
- completion_list_add_fields (tracker, sym,
- sym_text, sym_text_len, text,
- word);
+ completion_list_add_symbol (tracker, sym, lookup_name,
+ sym_text, word);
+ completion_list_add_fields (tracker, sym, lookup_name,
+ sym_text, word);
}
else if (SYMBOL_DOMAIN (sym) == STRUCT_DOMAIN
&& TYPE_CODE (SYMBOL_TYPE (sym)) == code)
- completion_list_add_symbol (tracker, sym,
- sym_text, sym_text_len, text,
- word);
+ completion_list_add_symbol (tracker, sym, lookup_name,
+ sym_text, word);
}
/* Stop when we encounter an enclosing function. Do not stop for
{
if (surrounding_static_block != NULL)
ALL_BLOCK_SYMBOLS (surrounding_static_block, iter, sym)
- completion_list_add_fields (tracker, sym,
- sym_text, sym_text_len, text, word);
+ completion_list_add_fields (tracker, sym, lookup_name,
+ sym_text, word);
if (surrounding_global_block != NULL)
ALL_BLOCK_SYMBOLS (surrounding_global_block, iter, sym)
- completion_list_add_fields (tracker, sym,
- sym_text, sym_text_len, text, word);
+ completion_list_add_fields (tracker, sym, lookup_name,
+ sym_text, word);
}
/* Skip macros if we are completing a struct tag -- arguable but
if (current_language->la_macro_expansion == macro_expansion_c
&& code == TYPE_CODE_UNDEF)
{
- struct macro_scope *scope;
+ gdb::unique_xmalloc_ptr<struct macro_scope> scope;
/* This adds a macro's name to the current completion list. */
auto add_macro_name = [&] (const char *macro_name,
macro_source_file *,
int)
{
- completion_list_add_name (tracker, macro_name,
- sym_text, sym_text_len,
- text, word);
+ completion_list_add_name (tracker, language_c, macro_name,
+ lookup_name, sym_text, word);
};
/* Add any macros visible in the default scope. Note that this
completion time. */
scope = default_macro_scope ();
if (scope)
- {
- macro_for_each_in_scope (scope->file, scope->line,
- add_macro_name);
- xfree (scope);
- }
+ macro_for_each_in_scope (scope->file, scope->line,
+ add_macro_name);
/* User-defined macros are always visible. */
macro_for_each (macro_user_macros, add_macro_name);
void
default_collect_symbol_completion_matches (completion_tracker &tracker,
complete_symbol_mode mode,
+ symbol_name_match_type name_match_type,
const char *text, const char *word,
enum type_code code)
{
return default_collect_symbol_completion_matches_break_on (tracker, mode,
+ name_match_type,
text, word, "",
code);
}
void
collect_symbol_completion_matches (completion_tracker &tracker,
complete_symbol_mode mode,
+ symbol_name_match_type name_match_type,
const char *text, const char *word)
{
current_language->la_collect_symbol_completion_matches (tracker, mode,
+ name_match_type,
text, word,
TYPE_CODE_UNDEF);
}
enum type_code code)
{
complete_symbol_mode mode = complete_symbol_mode::EXPRESSION;
+ symbol_name_match_type name_match_type = symbol_name_match_type::EXPRESSION;
gdb_assert (code == TYPE_CODE_UNION
|| code == TYPE_CODE_STRUCT
|| code == TYPE_CODE_ENUM);
current_language->la_collect_symbol_completion_matches (tracker, mode,
+ name_match_type,
text, word, code);
}
void
collect_file_symbol_completion_matches (completion_tracker &tracker,
complete_symbol_mode mode,
+ symbol_name_match_type name_match_type,
const char *text, const char *word,
const char *srcfile)
{
/* The symbol we are completing on. Points in same buffer as text. */
const char *sym_text;
- /* Length of sym_text. */
- int sym_text_len;
/* Now look for the symbol we are supposed to complete on.
FIXME: This should be language-specific. */
}
}
- sym_text_len = strlen (sym_text);
+ lookup_name_info lookup_name (sym_text, name_match_type, true);
/* Go through symtabs for SRCFILE and check the externs and statics
for symbols which match. */
iterate_over_symtabs (srcfile, [&] (symtab *s)
{
add_symtab_completions (SYMTAB_COMPUNIT (s),
- tracker,
- sym_text, sym_text_len,
- text, word, TYPE_CODE_UNDEF);
+ tracker, mode, lookup_name,
+ sym_text, word, TYPE_CODE_UNDEF);
return false;
});
}
add_filename_to_list (const char *fname, const char *text, const char *word,
completion_list *list)
{
- char *newobj;
- size_t fnlen = strlen (fname);
-
- if (word == text)
- {
- /* Return exactly fname. */
- newobj = (char *) xmalloc (fnlen + 5);
- strcpy (newobj, fname);
- }
- else if (word > text)
- {
- /* Return some portion of fname. */
- newobj = (char *) xmalloc (fnlen + 5);
- strcpy (newobj, fname + (word - text));
- }
- else
- {
- /* Return some of TEXT plus fname. */
- newobj = (char *) xmalloc (fnlen + (text - word) + 5);
- strncpy (newobj, word, text - word);
- newobj[text - word] = '\0';
- strcat (newobj, fname);
- }
- list->emplace_back (newobj);
+ list->emplace_back (make_completion_match_str (fname, text, word));
}
static int
completion_list
make_source_files_completion_list (const char *text, const char *word)
{
- struct compunit_symtab *cu;
- struct symtab *s;
- struct objfile *objfile;
size_t text_len = strlen (text);
completion_list list;
const char *base_name;
struct add_partial_filename_data datum;
- struct cleanup *back_to;
if (!have_full_symbols () && !have_partial_symbols ())
return list;
filename_seen_cache filenames_seen;
- ALL_FILETABS (objfile, cu, s)
+ for (objfile *objfile : current_program_space->objfiles ())
{
- if (not_interesting_fname (s->filename))
- continue;
- if (!filenames_seen.seen (s->filename)
- && filename_ncmp (s->filename, text, text_len) == 0)
- {
- /* This file matches for a completion; add it to the current
- list of matches. */
- add_filename_to_list (s->filename, text, word, &list);
- }
- else
+ for (compunit_symtab *cu : objfile->compunits ())
{
- /* NOTE: We allow the user to type a base name when the
- debug info records leading directories, but not the other
- way around. This is what subroutines of breakpoint
- command do when they parse file names. */
- base_name = lbasename (s->filename);
- if (base_name != s->filename
- && !filenames_seen.seen (base_name)
- && filename_ncmp (base_name, text, text_len) == 0)
- add_filename_to_list (base_name, text, word, &list);
+ for (symtab *s : compunit_filetabs (cu))
+ {
+ if (not_interesting_fname (s->filename))
+ continue;
+ if (!filenames_seen.seen (s->filename)
+ && filename_ncmp (s->filename, text, text_len) == 0)
+ {
+ /* This file matches for a completion; add it to the current
+ list of matches. */
+ add_filename_to_list (s->filename, text, word, &list);
+ }
+ else
+ {
+ /* NOTE: We allow the user to type a base name when the
+ debug info records leading directories, but not the other
+ way around. This is what subroutines of breakpoint
+ command do when they parse file names. */
+ base_name = lbasename (s->filename);
+ if (base_name != s->filename
+ && !filenames_seen.seen (base_name)
+ && filename_ncmp (base_name, text, text_len) == 0)
+ add_filename_to_list (base_name, text, word, &list);
+ }
+ }
}
}
static struct main_info *
get_main_info (void)
{
- struct main_info *info
- = (struct main_info *) program_space_data (current_program_space,
- main_progspace_key);
+ struct main_info *info = main_progspace_key.get (current_program_space);
if (info == NULL)
{
gdb returned "main" as the name even if no function named
"main" was defined the program; and this approach lets us
keep compatibility. */
- info = XCNEW (struct main_info);
- info->language_of_main = language_unknown;
- set_program_space_data (current_program_space, main_progspace_key,
- info);
+ info = main_progspace_key.emplace (current_program_space);
}
return info;
}
-/* A cleanup to destroy a struct main_info when a progspace is
- destroyed. */
-
-static void
-main_info_cleanup (struct program_space *pspace, void *data)
-{
- struct main_info *info = (struct main_info *) data;
-
- if (info != NULL)
- xfree (info->name_of_main);
- xfree (info);
-}
-
static void
set_main_name (const char *name, enum language lang)
{
find_main_name (void)
{
const char *new_main_name;
- struct objfile *objfile;
/* First check the objfiles to see whether a debuginfo reader has
picked up the appropriate main name. Historically the main name
relies on the order of objfile creation -- which still isn't
guaranteed to get the correct answer, but is just probably more
accurate. */
- ALL_OBJFILES (objfile)
- {
- if (objfile->per_bfd->name_of_main != NULL)
- {
- set_main_name (objfile->per_bfd->name_of_main,
- objfile->per_bfd->language_of_main);
- return;
- }
- }
+ for (objfile *objfile : current_program_space->objfiles ())
+ {
+ if (objfile->per_bfd->name_of_main != NULL)
+ {
+ set_main_name (objfile->per_bfd->name_of_main,
+ objfile->per_bfd->language_of_main);
+ return;
+ }
+ }
/* Try to see if the main procedure is in Ada. */
/* FIXME: brobecker/2005-03-07: Another way of doing this would
set_main_name ("main", language_unknown);
}
-char *
-main_name (void)
+/* See symtab.h. */
+
+const char *
+main_name ()
{
struct main_info *info = get_main_info ();
struct template_symbol *result;
result = OBSTACK_ZALLOC (&objfile->objfile_obstack, struct template_symbol);
- initialize_objfile_symbol_1 (&result->base);
+ initialize_objfile_symbol_1 (result);
return result;
}
void
_initialize_symtab (void)
{
- initialize_ordinary_address_classes ();
+ cmd_list_element *c;
- main_progspace_key
- = register_program_space_data_with_cleanup (NULL, main_info_cleanup);
-
- symbol_cache_key
- = register_program_space_data_with_cleanup (NULL, symbol_cache_cleanup);
+ initialize_ordinary_address_classes ();
- add_info ("variables", info_variables_command, _("\
-All global and static variable names, or those matching REGEXP."));
+ c = add_info ("variables", info_variables_command,
+ info_print_args_help (_("\
+All global and static variable names or those matching REGEXPs.\n\
+Usage: info variables [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\
+Prints the global and static variables.\n"),
+ _("global and static variables"),
+ true));
+ set_cmd_completer_handle_brkchars (c, info_print_command_completer);
if (dbx_commands)
- add_com ("whereis", class_info, info_variables_command, _("\
-All global and static variable names, or those matching REGEXP."));
-
- add_info ("functions", info_functions_command,
- _("All function names, or those matching REGEXP."));
-
- /* FIXME: This command has at least the following problems:
- 1. It prints builtin types (in a very strange and confusing fashion).
- 2. It doesn't print right, e.g. with
- typedef struct foo *FOO
- type_print prints "FOO" when we want to make it (in this situation)
- print "struct foo *".
- I also think "ptype" or "whatis" is more likely to be useful (but if
- there is much disagreement "info types" can be fixed). */
- add_info ("types", info_types_command,
- _("All type names, or those matching REGEXP."));
-
- add_info ("sources", info_sources_command,
- _("Source files in the program."));
+ {
+ c = add_com ("whereis", class_info, info_variables_command,
+ info_print_args_help (_("\
+All global and static variable names, or those matching REGEXPs.\n\
+Usage: whereis [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\
+Prints the global and static variables.\n"),
+ _("global and static variables"),
+ true));
+ set_cmd_completer_handle_brkchars (c, info_print_command_completer);
+ }
+
+ c = add_info ("functions", info_functions_command,
+ info_print_args_help (_("\
+All function names or those matching REGEXPs.\n\
+Usage: info functions [-q] [-n] [-t TYPEREGEXP] [NAMEREGEXP]\n\
+Prints the functions.\n"),
+ _("functions"),
+ true));
+ set_cmd_completer_handle_brkchars (c, info_print_command_completer);
+
+ c = add_info ("types", info_types_command, _("\
+All type names, or those matching REGEXP.\n\
+Usage: info types [-q] [REGEXP]\n\
+Print information about all types matching REGEXP, or all types if no\n\
+REGEXP is given. The optional flag -q disables printing of headers."));
+ set_cmd_completer_handle_brkchars (c, info_types_command_completer);
+
+ const auto info_sources_opts = make_info_sources_options_def_group (nullptr);
+
+ static std::string info_sources_help
+ = gdb::option::build_help (_("\
+All source files in the program or those matching REGEXP.\n\
+Usage: info sources [OPTION]... [REGEXP]\n\
+By default, REGEXP is used to match anywhere in the filename.\n\
+\n\
+Options:\n\
+%OPTIONS%"),
+ info_sources_opts);
+
+ c = add_info ("sources", info_sources_command, info_sources_help.c_str ());
+ set_cmd_completer_handle_brkchars (c, info_sources_command_completer);
add_com ("rbreak", class_breakpoint, rbreak_command,
_("Set a breakpoint for all functions matching REGEXP."));
add_setshow_enum_cmd ("multiple-symbols", no_class,
multiple_symbols_modes, &multiple_symbols_mode,
_("\
-Set the debugger behavior when more than one symbol are possible matches\n\
-in an expression."), _("\
+Set how the debugger handles ambiguities in expressions."), _("\
Show how the debugger handles ambiguities in expressions."), _("\
Valid values are \"ask\", \"all\", \"cancel\", and the default is \"all\"."),
NULL, NULL, &setlist, &showlist);
_("Flush the symbol cache for each program space."),
&maintenancelist);
- observer_attach_executable_changed (symtab_observer_executable_changed);
- observer_attach_new_objfile (symtab_new_objfile_observer);
- observer_attach_free_objfile (symtab_free_objfile_observer);
+ gdb::observers::executable_changed.attach (symtab_observer_executable_changed);
+ gdb::observers::new_objfile.attach (symtab_new_objfile_observer);
+ gdb::observers::free_objfile.attach (symtab_free_objfile_observer);
}
projects / deliverable / binutils-gdb.git / blobdiff